18543460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{977}}^1$

素因数の和:1072

約数の個数: 48

約数和(自身を含む): 42554736

約数和(自身を除く): 24011276

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 73, 130, 146, 260, 292, 365, 730, 949, 977, 1460, 1898, 1954, 3796, 3908, 4745, 4885, 9490, 9770, 12701, 18980, 19540, 25402, 50804, 63505, 71321, 127010, 142642, 254020, 285284, 356605, 713210, 927173, 1426420, 1854346, 3708692, 4635865, 9271730, 18543460]

約数ペア:

[(1, 18543460), (2, 9271730), (4, 4635865), (5, 3708692), (10, 1854346), (13, 1426420), (20, 927173), (26, 713210), (52, 356605), (65, 285284), (73, 254020), (130, 142642), (146, 127010), (260, 71321), (292, 63505), (365, 50804), (730, 25402), (949, 19540), (977, 18980), (1460, 12701), (1898, 9770), (1954, 9490), (3796, 4885), (3908, 4745)]