155479780

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{109}}^1\times {\mathrm{977}}^1$

素因数の和:1168

約数の個数: 48

約数和(自身を含む): 334358640

約数和(自身を除く): 178878860

約数列:

[1, 2, 4, 5, 10, 20, 73, 109, 146, 218, 292, 365, 436, 545, 730, 977, 1090, 1460, 1954, 2180, 3908, 4885, 7957, 9770, 15914, 19540, 31828, 39785, 71321, 79570, 106493, 142642, 159140, 212986, 285284, 356605, 425972, 532465, 713210, 1064930, 1426420, 2129860, 7773989, 15547978, 31095956, 38869945, 77739890, 155479780]

約数ペア:

[(1, 155479780), (2, 77739890), (4, 38869945), (5, 31095956), (10, 15547978), (20, 7773989), (73, 2129860), (109, 1426420), (146, 1064930), (218, 713210), (292, 532465), (365, 425972), (436, 356605), (545, 285284), (730, 212986), (977, 159140), (1090, 142642), (1460, 106493), (1954, 79570), (2180, 71321), (3908, 39785), (4885, 31828), (7957, 19540), (9770, 15914)]