25047380

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{569}}^1$

素因数の和:680

約数の個数: 48

約数和(自身を含む): 55157760

約数和(自身を除く): 30110380

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 71, 124, 142, 155, 284, 310, 355, 569, 620, 710, 1138, 1420, 2201, 2276, 2845, 4402, 5690, 8804, 11005, 11380, 17639, 22010, 35278, 40399, 44020, 70556, 80798, 88195, 161596, 176390, 201995, 352780, 403990, 807980, 1252369, 2504738, 5009476, 6261845, 12523690, 25047380]

約数ペア:

[(1, 25047380), (2, 12523690), (4, 6261845), (5, 5009476), (10, 2504738), (20, 1252369), (31, 807980), (62, 403990), (71, 352780), (124, 201995), (142, 176390), (155, 161596), (284, 88195), (310, 80798), (355, 70556), (569, 44020), (620, 40399), (710, 35278), (1138, 22010), (1420, 17639), (2201, 11380), (2276, 11005), (2845, 8804), (4402, 5690)]