20974750

素因数分解:

$2^1\times 5^3\times {\mathrm{53}}^1\times {\mathrm{1583}}^1$

素因数の和:1653

約数の個数: 32

約数和(自身を含む): 40030848

約数和(自身を除く): 19056098

約数列:

[1, 2, 5, 10, 25, 50, 53, 106, 125, 250, 265, 530, 1325, 1583, 2650, 3166, 6625, 7915, 13250, 15830, 39575, 79150, 83899, 167798, 197875, 395750, 419495, 838990, 2097475, 4194950, 10487375, 20974750]

約数ペア:

[(1, 20974750), (2, 10487375), (5, 4194950), (10, 2097475), (25, 838990), (50, 419495), (53, 395750), (106, 197875), (125, 167798), (250, 83899), (265, 79150), (530, 39575), (1325, 15830), (1583, 13250), (2650, 7915), (3166, 6625)]