21578100

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{4231}}^1$

素因数の和:4265

約数の個数: 72

約数和(自身を含む): 66120768

約数和(自身を除く): 44542668

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 25, 30, 34, 50, 51, 60, 68, 75, 85, 100, 102, 150, 170, 204, 255, 300, 340, 425, 510, 850, 1020, 1275, 1700, 2550, 4231, 5100, 8462, 12693, 16924, 21155, 25386, 42310, 50772, 63465, 71927, 84620, 105775, 126930, 143854, 211550, 215781, 253860, 287708, 317325, 359635, 423100, 431562, 634650, 719270, 863124, 1078905, 1269300, 1438540, 1798175, 2157810, 3596350, 4315620, 5394525, 7192700, 10789050, 21578100]

約数ペア:

[(1, 21578100), (2, 10789050), (3, 7192700), (4, 5394525), (5, 4315620), (6, 3596350), (10, 2157810), (12, 1798175), (15, 1438540), (17, 1269300), (20, 1078905), (25, 863124), (30, 719270), (34, 634650), (50, 431562), (51, 423100), (60, 359635), (68, 317325), (75, 287708), (85, 253860), (100, 215781), (102, 211550), (150, 143854), (170, 126930), (204, 105775), (255, 84620), (300, 71927), (340, 63465), (425, 50772), (510, 42310), (850, 25386), (1020, 21155), (1275, 16924), (1700, 12693), (2550, 8462), (4231, 5100)]