28784925

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^2\times {\mathrm{757}}^1$

素因数の和:799

約数の個数: 54

約数和(自身を含む): 55901742

約数和(自身を除く): 27116817

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 75, 117, 169, 195, 225, 325, 507, 585, 757, 845, 975, 1521, 2271, 2535, 2925, 3785, 4225, 6813, 7605, 9841, 11355, 12675, 18925, 29523, 34065, 38025, 49205, 56775, 88569, 127933, 147615, 170325, 246025, 383799, 442845, 639665, 738075, 1151397, 1918995, 2214225, 3198325, 5756985, 9594975, 28784925]

約数ペア:

[(1, 28784925), (3, 9594975), (5, 5756985), (9, 3198325), (13, 2214225), (15, 1918995), (25, 1151397), (39, 738075), (45, 639665), (65, 442845), (75, 383799), (117, 246025), (169, 170325), (195, 147615), (225, 127933), (325, 88569), (507, 56775), (585, 49205), (757, 38025), (845, 34065), (975, 29523), (1521, 18925), (2271, 12675), (2535, 11355), (2925, 9841), (3785, 7605), (4225, 6813)]