161265720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{563}}^1$

素因数の和:626

約数の個数: 256

約数和(自身を含む): 623738880

約数和(自身を除く): 462473160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 20, 21, 22, 24, 28, 30, 31, 33, 35, 40, 42, 44, 55, 56, 60, 62, 66, 70, 77, 84, 88, 93, 105, 110, 120, 124, 132, 140, 154, 155, 165, 168, 186, 210, 217, 220, 231, 248, 264, 280, 308, 310, 330, 341, 372, 385, 420, 434, 440, 462, 465, 563, 616, 620, 651, 660, 682, 744, 770, 840, 868, 924, 930, 1023, 1085, 1126, 1155, 1240, 1302, 1320, 1364, 1540, 1689, 1705, 1736, 1848, 1860, 2046, 2170, 2252, 2310, 2387, 2604, 2728, 2815, 3080, 3255, 3378, 3410, 3720, 3941, 4092, 4340, 4504, 4620, 4774, 5115, 5208, 5630, 6193, 6510, 6756, 6820, 7161, 7882, 8184, 8445, 8680, 9240, 9548, 10230, 11260, 11823, 11935, 12386, 13020, 13512, 13640, 14322, 15764, 16890, 17453, 18579, 19096, 19705, 20460, 22520, 23646, 23870, 24772, 26040, 28644, 30965, 31528, 33780, 34906, 35805, 37158, 39410, 40920, 43351, 47292, 47740, 49544, 52359, 57288, 59115, 61930, 67560, 69812, 71610, 74316, 78820, 86702, 87265, 92895, 94584, 95480, 104718, 118230, 122171, 123860, 130053, 139624, 143220, 148632, 157640, 173404, 174530, 185790, 191983, 209436, 216755, 236460, 244342, 247720, 260106, 261795, 286440, 346808, 349060, 366513, 371580, 383966, 418872, 433510, 472920, 488684, 520212, 523590, 575949, 610855, 650265, 698120, 733026, 743160, 767932, 867020, 959915, 977368, 1040424, 1047180, 1151898, 1221710, 1300530, 1343881, 1466052, 1535864, 1734040, 1832565, 1919830, 2094360, 2303796, 2443420, 2601060, 2687762, 2879745, 2932104, 3665130, 3839660, 4031643, 4607592, 4886840, 5202120, 5375524, 5759490, 6719405, 7330260, 7679320, 8063286, 10751048, 11518980, 13438810, 14660520, 16126572, 20158215, 23037960, 26877620, 32253144, 40316430, 53755240, 80632860, 161265720]

約数ペア:

[(1, 161265720), (2, 80632860), (3, 53755240), (4, 40316430), (5, 32253144), (6, 26877620), (7, 23037960), (8, 20158215), (10, 16126572), (11, 14660520), (12, 13438810), (14, 11518980), (15, 10751048), (20, 8063286), (21, 7679320), (22, 7330260), (24, 6719405), (28, 5759490), (30, 5375524), (31, 5202120), (33, 4886840), (35, 4607592), (40, 4031643), (42, 3839660), (44, 3665130), (55, 2932104), (56, 2879745), (60, 2687762), (62, 2601060), (66, 2443420), (70, 2303796), (77, 2094360), (84, 1919830), (88, 1832565), (93, 1734040), (105, 1535864), (110, 1466052), (120, 1343881), (124, 1300530), (132, 1221710), (140, 1151898), (154, 1047180), (155, 1040424), (165, 977368), (168, 959915), (186, 867020), (210, 767932), (217, 743160), (220, 733026), (231, 698120), (248, 650265), (264, 610855), (280, 575949), (308, 523590), (310, 520212), (330, 488684), (341, 472920), (372, 433510), (385, 418872), (420, 383966), (434, 371580), (440, 366513), (462, 349060), (465, 346808), (563, 286440), (616, 261795), (620, 260106), (651, 247720), (660, 244342), (682, 236460), (744, 216755), (770, 209436), (840, 191983), (868, 185790), (924, 174530), (930, 173404), (1023, 157640), (1085, 148632), (1126, 143220), (1155, 139624), (1240, 130053), (1302, 123860), (1320, 122171), (1364, 118230), (1540, 104718), (1689, 95480), (1705, 94584), (1736, 92895), (1848, 87265), (1860, 86702), (2046, 78820), (2170, 74316), (2252, 71610), (2310, 69812), (2387, 67560), (2604, 61930), (2728, 59115), (2815, 57288), (3080, 52359), (3255, 49544), (3378, 47740), (3410, 47292), (3720, 43351), (3941, 40920), (4092, 39410), (4340, 37158), (4504, 35805), (4620, 34906), (4774, 33780), (5115, 31528), (5208, 30965), (5630, 28644), (6193, 26040), (6510, 24772), (6756, 23870), (6820, 23646), (7161, 22520), (7882, 20460), (8184, 19705), (8445, 19096), (8680, 18579), (9240, 17453), (9548, 16890), (10230, 15764), (11260, 14322), (11823, 13640), (11935, 13512), (12386, 13020)]