215706680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{24851}}^1$

素因数の和:24900

約数の個数: 64

約数和(自身を含む): 572590080

約数和(自身を除く): 356883400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1736, 2170, 4340, 8680, 24851, 49702, 99404, 124255, 173957, 198808, 248510, 347914, 497020, 695828, 770381, 869785, 994040, 1391656, 1540762, 1739570, 3081524, 3479140, 3851905, 5392667, 6163048, 6958280, 7703810, 10785334, 15407620, 21570668, 26963335, 30815240, 43141336, 53926670, 107853340, 215706680]

約数ペア:

[(1, 215706680), (2, 107853340), (4, 53926670), (5, 43141336), (7, 30815240), (8, 26963335), (10, 21570668), (14, 15407620), (20, 10785334), (28, 7703810), (31, 6958280), (35, 6163048), (40, 5392667), (56, 3851905), (62, 3479140), (70, 3081524), (124, 1739570), (140, 1540762), (155, 1391656), (217, 994040), (248, 869785), (280, 770381), (310, 695828), (434, 497020), (620, 347914), (868, 248510), (1085, 198808), (1240, 173957), (1736, 124255), (2170, 99404), (4340, 49702), (8680, 24851)]