256536780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{1289}}^1$

素因数の和:1439

約数の個数: 96

約数和(自身を含む): 748984320

約数和(自身を除く): 492447540

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 93, 107, 124, 155, 186, 214, 310, 321, 372, 428, 465, 535, 620, 642, 930, 1070, 1284, 1289, 1605, 1860, 2140, 2578, 3210, 3317, 3867, 5156, 6420, 6445, 6634, 7734, 9951, 12890, 13268, 15468, 16585, 19335, 19902, 25780, 33170, 38670, 39804, 39959, 49755, 66340, 77340, 79918, 99510, 119877, 137923, 159836, 199020, 199795, 239754, 275846, 399590, 413769, 479508, 551692, 599385, 689615, 799180, 827538, 1198770, 1379230, 1655076, 2068845, 2397540, 2758460, 4137690, 4275613, 8275380, 8551226, 12826839, 17102452, 21378065, 25653678, 42756130, 51307356, 64134195, 85512260, 128268390, 256536780]

約数ペア:

[(1, 256536780), (2, 128268390), (3, 85512260), (4, 64134195), (5, 51307356), (6, 42756130), (10, 25653678), (12, 21378065), (15, 17102452), (20, 12826839), (30, 8551226), (31, 8275380), (60, 4275613), (62, 4137690), (93, 2758460), (107, 2397540), (124, 2068845), (155, 1655076), (186, 1379230), (214, 1198770), (310, 827538), (321, 799180), (372, 689615), (428, 599385), (465, 551692), (535, 479508), (620, 413769), (642, 399590), (930, 275846), (1070, 239754), (1284, 199795), (1289, 199020), (1605, 159836), (1860, 137923), (2140, 119877), (2578, 99510), (3210, 79918), (3317, 77340), (3867, 66340), (5156, 49755), (6420, 39959), (6445, 39804), (6634, 38670), (7734, 33170), (9951, 25780), (12890, 19902), (13268, 19335), (15468, 16585)]