28435875

素因数分解:

$3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{307}}^1$

素因数の和:357

約数の個数: 64

約数和(自身を含む): 53813760

約数和(自身を除く): 25377885

約数列:

[1, 3, 5, 13, 15, 19, 25, 39, 57, 65, 75, 95, 125, 195, 247, 285, 307, 325, 375, 475, 741, 921, 975, 1235, 1425, 1535, 1625, 2375, 3705, 3991, 4605, 4875, 5833, 6175, 7125, 7675, 11973, 17499, 18525, 19955, 23025, 29165, 30875, 38375, 59865, 75829, 87495, 92625, 99775, 115125, 145825, 227487, 299325, 379145, 437475, 498875, 729125, 1137435, 1496625, 1895725, 2187375, 5687175, 9478625, 28435875]

約数ペア:

[(1, 28435875), (3, 9478625), (5, 5687175), (13, 2187375), (15, 1895725), (19, 1496625), (25, 1137435), (39, 729125), (57, 498875), (65, 437475), (75, 379145), (95, 299325), (125, 227487), (195, 145825), (247, 115125), (285, 99775), (307, 92625), (325, 87495), (375, 75829), (475, 59865), (741, 38375), (921, 30875), (975, 29165), (1235, 23025), (1425, 19955), (1535, 18525), (1625, 17499), (2375, 11973), (3705, 7675), (3991, 7125), (4605, 6175), (4875, 5833)]