28125975

素因数分解:

$3^1\times 5^2\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1$

素因数の和:240

約数の個数: 48

約数和(自身を含む): 48568320

約数和(自身を除く): 20442345

約数列:

[1, 3, 5, 15, 25, 47, 75, 79, 101, 141, 235, 237, 303, 395, 505, 705, 1175, 1185, 1515, 1975, 2525, 3525, 3713, 4747, 5925, 7575, 7979, 11139, 14241, 18565, 23735, 23937, 39895, 55695, 71205, 92825, 118675, 119685, 199475, 278475, 356025, 375013, 598425, 1125039, 1875065, 5625195, 9375325, 28125975]

約数ペア:

[(1, 28125975), (3, 9375325), (5, 5625195), (15, 1875065), (25, 1125039), (47, 598425), (75, 375013), (79, 356025), (101, 278475), (141, 199475), (235, 119685), (237, 118675), (303, 92825), (395, 71205), (505, 55695), (705, 39895), (1175, 23937), (1185, 23735), (1515, 18565), (1975, 14241), (2525, 11139), (3525, 7979), (3713, 7575), (4747, 5925)]