61260220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{6163}}^1$

素因数の和:6250

約数の個数: 48

約数和(自身を含む): 149119488

約数和(自身を除く): 87859268

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4970, 6163, 9940, 12326, 24652, 30815, 43141, 61630, 86282, 123260, 172564, 215705, 431410, 437573, 862820, 875146, 1750292, 2187865, 3063011, 4375730, 6126022, 8751460, 12252044, 15315055, 30630110, 61260220]

約数ペア:

[(1, 61260220), (2, 30630110), (4, 15315055), (5, 12252044), (7, 8751460), (10, 6126022), (14, 4375730), (20, 3063011), (28, 2187865), (35, 1750292), (70, 875146), (71, 862820), (140, 437573), (142, 431410), (284, 215705), (355, 172564), (497, 123260), (710, 86282), (994, 61630), (1420, 43141), (1988, 30815), (2485, 24652), (4970, 12326), (6163, 9940)]