18231640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1$

素因数の和:209

約数の個数: 128

約数和(自身を含む): 51840000

約数和(自身を除く): 33608360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 23, 28, 35, 38, 40, 46, 56, 70, 76, 92, 95, 115, 133, 140, 149, 152, 161, 184, 190, 230, 266, 280, 298, 322, 380, 437, 460, 532, 596, 644, 665, 745, 760, 805, 874, 920, 1043, 1064, 1192, 1288, 1330, 1490, 1610, 1748, 2086, 2185, 2660, 2831, 2980, 3059, 3220, 3427, 3496, 4172, 4370, 5215, 5320, 5662, 5960, 6118, 6440, 6854, 8344, 8740, 10430, 11324, 12236, 13708, 14155, 15295, 17135, 17480, 19817, 20860, 22648, 23989, 24472, 27416, 28310, 30590, 34270, 39634, 41720, 47978, 56620, 61180, 65113, 68540, 79268, 95956, 99085, 113240, 119945, 122360, 130226, 137080, 158536, 191912, 198170, 239890, 260452, 325565, 396340, 455791, 479780, 520904, 651130, 792680, 911582, 959560, 1302260, 1823164, 2278955, 2604520, 3646328, 4557910, 9115820, 18231640]

約数ペア:

[(1, 18231640), (2, 9115820), (4, 4557910), (5, 3646328), (7, 2604520), (8, 2278955), (10, 1823164), (14, 1302260), (19, 959560), (20, 911582), (23, 792680), (28, 651130), (35, 520904), (38, 479780), (40, 455791), (46, 396340), (56, 325565), (70, 260452), (76, 239890), (92, 198170), (95, 191912), (115, 158536), (133, 137080), (140, 130226), (149, 122360), (152, 119945), (161, 113240), (184, 99085), (190, 95956), (230, 79268), (266, 68540), (280, 65113), (298, 61180), (322, 56620), (380, 47978), (437, 41720), (460, 39634), (532, 34270), (596, 30590), (644, 28310), (665, 27416), (745, 24472), (760, 23989), (805, 22648), (874, 20860), (920, 19817), (1043, 17480), (1064, 17135), (1192, 15295), (1288, 14155), (1330, 13708), (1490, 12236), (1610, 11324), (1748, 10430), (2086, 8740), (2185, 8344), (2660, 6854), (2831, 6440), (2980, 6118), (3059, 5960), (3220, 5662), (3427, 5320), (3496, 5215), (4172, 4370)]