261463920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{311}}^1$

素因数の和:471

約数の個数: 160

約数和(自身を含む): 846802944

約数和(自身を除く): 585339024

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 48, 60, 62, 80, 93, 113, 120, 124, 155, 186, 226, 240, 248, 310, 311, 339, 372, 452, 465, 496, 565, 620, 622, 678, 744, 904, 930, 933, 1130, 1240, 1244, 1356, 1488, 1555, 1695, 1808, 1860, 1866, 2260, 2480, 2488, 2712, 3110, 3390, 3503, 3720, 3732, 4520, 4665, 4976, 5424, 6220, 6780, 7006, 7440, 7464, 9040, 9330, 9641, 10509, 12440, 13560, 14012, 14928, 17515, 18660, 19282, 21018, 24880, 27120, 28024, 28923, 35030, 35143, 37320, 38564, 42036, 48205, 52545, 56048, 57846, 70060, 70286, 74640, 77128, 84072, 96410, 105090, 105429, 115692, 140120, 140572, 144615, 154256, 168144, 175715, 192820, 210180, 210858, 231384, 280240, 281144, 289230, 351430, 385640, 420360, 421716, 462768, 527145, 562288, 578460, 702860, 771280, 840720, 843432, 1054290, 1089433, 1156920, 1405720, 1686864, 2108580, 2178866, 2313840, 2811440, 3268299, 4217160, 4357732, 5447165, 6536598, 8434320, 8715464, 10894330, 13073196, 16341495, 17430928, 21788660, 26146392, 32682990, 43577320, 52292784, 65365980, 87154640, 130731960, 261463920]

約数ペア:

[(1, 261463920), (2, 130731960), (3, 87154640), (4, 65365980), (5, 52292784), (6, 43577320), (8, 32682990), (10, 26146392), (12, 21788660), (15, 17430928), (16, 16341495), (20, 13073196), (24, 10894330), (30, 8715464), (31, 8434320), (40, 6536598), (48, 5447165), (60, 4357732), (62, 4217160), (80, 3268299), (93, 2811440), (113, 2313840), (120, 2178866), (124, 2108580), (155, 1686864), (186, 1405720), (226, 1156920), (240, 1089433), (248, 1054290), (310, 843432), (311, 840720), (339, 771280), (372, 702860), (452, 578460), (465, 562288), (496, 527145), (565, 462768), (620, 421716), (622, 420360), (678, 385640), (744, 351430), (904, 289230), (930, 281144), (933, 280240), (1130, 231384), (1240, 210858), (1244, 210180), (1356, 192820), (1488, 175715), (1555, 168144), (1695, 154256), (1808, 144615), (1860, 140572), (1866, 140120), (2260, 115692), (2480, 105429), (2488, 105090), (2712, 96410), (3110, 84072), (3390, 77128), (3503, 74640), (3720, 70286), (3732, 70060), (4520, 57846), (4665, 56048), (4976, 52545), (5424, 48205), (6220, 42036), (6780, 38564), (7006, 37320), (7440, 35143), (7464, 35030), (9040, 28923), (9330, 28024), (9641, 27120), (10509, 24880), (12440, 21018), (13560, 19282), (14012, 18660), (14928, 17515)]