20113875

素因数分解:

$3^2\times 5^3\times {\mathrm{19}}^1\times {\mathrm{941}}^1$

素因数の和:981

約数の個数: 48

約数和(自身を含む): 38207520

約数和(自身を除く): 18093645

約数列:

[1, 3, 5, 9, 15, 19, 25, 45, 57, 75, 95, 125, 171, 225, 285, 375, 475, 855, 941, 1125, 1425, 2375, 2823, 4275, 4705, 7125, 8469, 14115, 17879, 21375, 23525, 42345, 53637, 70575, 89395, 117625, 160911, 211725, 268185, 352875, 446975, 804555, 1058625, 1340925, 2234875, 4022775, 6704625, 20113875]

約数ペア:

[(1, 20113875), (3, 6704625), (5, 4022775), (9, 2234875), (15, 1340925), (19, 1058625), (25, 804555), (45, 446975), (57, 352875), (75, 268185), (95, 211725), (125, 160911), (171, 117625), (225, 89395), (285, 70575), (375, 53637), (475, 42345), (855, 23525), (941, 21375), (1125, 17879), (1425, 14115), (2375, 8469), (2823, 7125), (4275, 4705)]