998901960

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{347}}^1$

素因数の和:540

約数の個数: 256

約数和(自身を含む): 3608064000

約数和(自身を除く): 2609162040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 23, 24, 28, 30, 35, 40, 42, 46, 56, 60, 69, 70, 84, 92, 105, 115, 120, 138, 140, 149, 161, 168, 184, 210, 230, 276, 280, 298, 322, 345, 347, 420, 447, 460, 483, 552, 596, 644, 690, 694, 745, 805, 840, 894, 920, 966, 1041, 1043, 1192, 1288, 1380, 1388, 1490, 1610, 1735, 1788, 1932, 2082, 2086, 2235, 2415, 2429, 2760, 2776, 2980, 3129, 3220, 3427, 3470, 3576, 3864, 4164, 4172, 4470, 4830, 4858, 5205, 5215, 5960, 6258, 6440, 6854, 6940, 7287, 7981, 8328, 8344, 8940, 9660, 9716, 10281, 10410, 10430, 12145, 12516, 13708, 13880, 14574, 15645, 15962, 17135, 17880, 19320, 19432, 20562, 20820, 20860, 23943, 23989, 24290, 25032, 27416, 29148, 31290, 31924, 34270, 36435, 39905, 41124, 41640, 41720, 47886, 47978, 48580, 51405, 51703, 55867, 58296, 62580, 63848, 68540, 71967, 72870, 79810, 82248, 95772, 95956, 97160, 102810, 103406, 111734, 119715, 119945, 125160, 137080, 143934, 145740, 155109, 159620, 167601, 191544, 191912, 205620, 206812, 223468, 239430, 239890, 258515, 279335, 287868, 291480, 310218, 319240, 335202, 359835, 361921, 411240, 413624, 446936, 478860, 479780, 517030, 558670, 575736, 620436, 670404, 719670, 723842, 775545, 838005, 957720, 959560, 1034060, 1085763, 1117340, 1189169, 1240872, 1340808, 1439340, 1447684, 1551090, 1676010, 1809605, 2068120, 2171526, 2234680, 2378338, 2878680, 2895368, 3102180, 3352020, 3567507, 3619210, 4343052, 4756676, 5428815, 5945845, 6204360, 6704040, 7135014, 7238420, 8324183, 8686104, 9513352, 10857630, 11891690, 14270028, 14476840, 16648366, 17837535, 21715260, 23783380, 24972549, 28540056, 33296732, 35675070, 41620915, 43430520, 47566760, 49945098, 66593464, 71350140, 83241830, 99890196, 124862745, 142700280, 166483660, 199780392, 249725490, 332967320, 499450980, 998901960]

約数ペア:

[(1, 998901960), (2, 499450980), (3, 332967320), (4, 249725490), (5, 199780392), (6, 166483660), (7, 142700280), (8, 124862745), (10, 99890196), (12, 83241830), (14, 71350140), (15, 66593464), (20, 49945098), (21, 47566760), (23, 43430520), (24, 41620915), (28, 35675070), (30, 33296732), (35, 28540056), (40, 24972549), (42, 23783380), (46, 21715260), (56, 17837535), (60, 16648366), (69, 14476840), (70, 14270028), (84, 11891690), (92, 10857630), (105, 9513352), (115, 8686104), (120, 8324183), (138, 7238420), (140, 7135014), (149, 6704040), (161, 6204360), (168, 5945845), (184, 5428815), (210, 4756676), (230, 4343052), (276, 3619210), (280, 3567507), (298, 3352020), (322, 3102180), (345, 2895368), (347, 2878680), (420, 2378338), (447, 2234680), (460, 2171526), (483, 2068120), (552, 1809605), (596, 1676010), (644, 1551090), (690, 1447684), (694, 1439340), (745, 1340808), (805, 1240872), (840, 1189169), (894, 1117340), (920, 1085763), (966, 1034060), (1041, 959560), (1043, 957720), (1192, 838005), (1288, 775545), (1380, 723842), (1388, 719670), (1490, 670404), (1610, 620436), (1735, 575736), (1788, 558670), (1932, 517030), (2082, 479780), (2086, 478860), (2235, 446936), (2415, 413624), (2429, 411240), (2760, 361921), (2776, 359835), (2980, 335202), (3129, 319240), (3220, 310218), (3427, 291480), (3470, 287868), (3576, 279335), (3864, 258515), (4164, 239890), (4172, 239430), (4470, 223468), (4830, 206812), (4858, 205620), (5205, 191912), (5215, 191544), (5960, 167601), (6258, 159620), (6440, 155109), (6854, 145740), (6940, 143934), (7287, 137080), (7981, 125160), (8328, 119945), (8344, 119715), (8940, 111734), (9660, 103406), (9716, 102810), (10281, 97160), (10410, 95956), (10430, 95772), (12145, 82248), (12516, 79810), (13708, 72870), (13880, 71967), (14574, 68540), (15645, 63848), (15962, 62580), (17135, 58296), (17880, 55867), (19320, 51703), (19432, 51405), (20562, 48580), (20820, 47978), (20860, 47886), (23943, 41720), (23989, 41640), (24290, 41124), (25032, 39905), (27416, 36435), (29148, 34270), (31290, 31924)]