25135420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{571}}^1$

素因数の和:682

約数の個数: 48

約数和(自身を含む): 55351296

約数和(自身を除く): 30215876

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 71, 124, 142, 155, 284, 310, 355, 571, 620, 710, 1142, 1420, 2201, 2284, 2855, 4402, 5710, 8804, 11005, 11420, 17701, 22010, 35402, 40541, 44020, 70804, 81082, 88505, 162164, 177010, 202705, 354020, 405410, 810820, 1256771, 2513542, 5027084, 6283855, 12567710, 25135420]

約数ペア:

[(1, 25135420), (2, 12567710), (4, 6283855), (5, 5027084), (10, 2513542), (20, 1256771), (31, 810820), (62, 405410), (71, 354020), (124, 202705), (142, 177010), (155, 162164), (284, 88505), (310, 81082), (355, 70804), (571, 44020), (620, 40541), (710, 35402), (1142, 22010), (1420, 17701), (2201, 11420), (2284, 11005), (2855, 8804), (4402, 5710)]