19735875

素因数分解:

$3^2\times 5^3\times {\mathrm{53}}^1\times {\mathrm{331}}^1$

素因数の和:405

約数の個数: 48

約数和(自身を含む): 36357984

約数和(自身を除く): 16622109

約数列:

[1, 3, 5, 9, 15, 25, 45, 53, 75, 125, 159, 225, 265, 331, 375, 477, 795, 993, 1125, 1325, 1655, 2385, 2979, 3975, 4965, 6625, 8275, 11925, 14895, 17543, 19875, 24825, 41375, 52629, 59625, 74475, 87715, 124125, 157887, 263145, 372375, 438575, 789435, 1315725, 2192875, 3947175, 6578625, 19735875]

約数ペア:

[(1, 19735875), (3, 6578625), (5, 3947175), (9, 2192875), (15, 1315725), (25, 789435), (45, 438575), (53, 372375), (75, 263145), (125, 157887), (159, 124125), (225, 87715), (265, 74475), (331, 59625), (375, 52629), (477, 41375), (795, 24825), (993, 19875), (1125, 17543), (1325, 14895), (1655, 11925), (2385, 8275), (2979, 6625), (3975, 4965)]