389631275

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1\times {\mathrm{257}}^1$

素因数の和:464

約数の個数: 48

約数和(自身を含む): 547063200

約数和(自身を除く): 157431925

約数列:

[1, 5, 11, 25, 37, 55, 149, 185, 257, 275, 407, 745, 925, 1285, 1639, 2035, 2827, 3725, 5513, 6425, 8195, 9509, 10175, 14135, 27565, 38293, 40975, 47545, 60643, 70675, 104599, 137825, 191465, 237725, 303215, 421223, 522995, 957325, 1416841, 1516075, 2106115, 2614975, 7084205, 10530575, 15585251, 35421025, 77926255, 389631275]

約数ペア:

[(1, 389631275), (5, 77926255), (11, 35421025), (25, 15585251), (37, 10530575), (55, 7084205), (149, 2614975), (185, 2106115), (257, 1516075), (275, 1416841), (407, 957325), (745, 522995), (925, 421223), (1285, 303215), (1639, 237725), (2035, 191465), (2827, 137825), (3725, 104599), (5513, 70675), (6425, 60643), (8195, 47545), (9509, 40975), (10175, 38293), (14135, 27565)]