18759975

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{271}}^1$

素因数の和:368

約数の個数: 48

約数和(自身を含む): 33997824

約数和(自身を除く): 15237849

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 71, 75, 195, 213, 271, 325, 355, 813, 923, 975, 1065, 1355, 1775, 2769, 3523, 4065, 4615, 5325, 6775, 10569, 13845, 17615, 19241, 20325, 23075, 52845, 57723, 69225, 88075, 96205, 250133, 264225, 288615, 481025, 750399, 1250665, 1443075, 3751995, 6253325, 18759975]

約数ペア:

[(1, 18759975), (3, 6253325), (5, 3751995), (13, 1443075), (15, 1250665), (25, 750399), (39, 481025), (65, 288615), (71, 264225), (75, 250133), (195, 96205), (213, 88075), (271, 69225), (325, 57723), (355, 52845), (813, 23075), (923, 20325), (975, 19241), (1065, 17615), (1355, 13845), (1775, 10569), (2769, 6775), (3523, 5325), (4065, 4615)]