28480940

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{647}}^1$

素因数の和:758

約数の個数: 48

約数和(自身を含む): 62705664

約数和(自身を除く): 34224724

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 71, 124, 142, 155, 284, 310, 355, 620, 647, 710, 1294, 1420, 2201, 2588, 3235, 4402, 6470, 8804, 11005, 12940, 20057, 22010, 40114, 44020, 45937, 80228, 91874, 100285, 183748, 200570, 229685, 401140, 459370, 918740, 1424047, 2848094, 5696188, 7120235, 14240470, 28480940]

約数ペア:

[(1, 28480940), (2, 14240470), (4, 7120235), (5, 5696188), (10, 2848094), (20, 1424047), (31, 918740), (62, 459370), (71, 401140), (124, 229685), (142, 200570), (155, 183748), (284, 100285), (310, 91874), (355, 80228), (620, 45937), (647, 44020), (710, 40114), (1294, 22010), (1420, 20057), (2201, 12940), (2588, 11005), (3235, 8804), (4402, 6470)]