21303120

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{2399}}^1$

素因数の和:2452

約数の個数: 80

約数和(自身を含む): 67852800

約数和(自身を除く): 46549680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 37, 40, 48, 60, 74, 80, 111, 120, 148, 185, 222, 240, 296, 370, 444, 555, 592, 740, 888, 1110, 1480, 1776, 2220, 2399, 2960, 4440, 4798, 7197, 8880, 9596, 11995, 14394, 19192, 23990, 28788, 35985, 38384, 47980, 57576, 71970, 88763, 95960, 115152, 143940, 177526, 191920, 266289, 287880, 355052, 443815, 532578, 575760, 710104, 887630, 1065156, 1331445, 1420208, 1775260, 2130312, 2662890, 3550520, 4260624, 5325780, 7101040, 10651560, 21303120]

約数ペア:

[(1, 21303120), (2, 10651560), (3, 7101040), (4, 5325780), (5, 4260624), (6, 3550520), (8, 2662890), (10, 2130312), (12, 1775260), (15, 1420208), (16, 1331445), (20, 1065156), (24, 887630), (30, 710104), (37, 575760), (40, 532578), (48, 443815), (60, 355052), (74, 287880), (80, 266289), (111, 191920), (120, 177526), (148, 143940), (185, 115152), (222, 95960), (240, 88763), (296, 71970), (370, 57576), (444, 47980), (555, 38384), (592, 35985), (740, 28788), (888, 23990), (1110, 19192), (1480, 14394), (1776, 11995), (2220, 9596), (2399, 8880), (2960, 7197), (4440, 4798)]