20008725

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{307}}^1$

素因数の和:410

約数の個数: 48

約数和(自身を含む): 36664320

約数和(自身を除く): 16655595

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 79, 165, 237, 275, 307, 395, 825, 869, 921, 1185, 1535, 1975, 2607, 3377, 4345, 4605, 5925, 7675, 10131, 13035, 16885, 21725, 23025, 24253, 50655, 65175, 72759, 84425, 121265, 253275, 266783, 363795, 606325, 800349, 1333915, 1818975, 4001745, 6669575, 20008725]

約数ペア:

[(1, 20008725), (3, 6669575), (5, 4001745), (11, 1818975), (15, 1333915), (25, 800349), (33, 606325), (55, 363795), (75, 266783), (79, 253275), (165, 121265), (237, 84425), (275, 72759), (307, 65175), (395, 50655), (825, 24253), (869, 23025), (921, 21725), (1185, 16885), (1535, 13035), (1975, 10131), (2607, 7675), (3377, 5925), (4345, 4605)]