90428560

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{16871}}^1$

素因数の和:16951

約数の個数: 40

約数和(自身を含む): 213397056

約数和(自身を除く): 122968496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 268, 335, 536, 670, 1072, 1340, 2680, 5360, 16871, 33742, 67484, 84355, 134968, 168710, 269936, 337420, 674840, 1130357, 1349680, 2260714, 4521428, 5651785, 9042856, 11303570, 18085712, 22607140, 45214280, 90428560]

約数ペア:

[(1, 90428560), (2, 45214280), (4, 22607140), (5, 18085712), (8, 11303570), (10, 9042856), (16, 5651785), (20, 4521428), (40, 2260714), (67, 1349680), (80, 1130357), (134, 674840), (268, 337420), (335, 269936), (536, 168710), (670, 134968), (1072, 84355), (1340, 67484), (2680, 33742), (5360, 16871)]