18126320

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{7309}}^1$

素因数の和:7353

約数の個数: 40

約数和(自身を含む): 43509120

約数和(自身を除く): 25382800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 7309, 14618, 29236, 36545, 58472, 73090, 116944, 146180, 226579, 292360, 453158, 584720, 906316, 1132895, 1812632, 2265790, 3625264, 4531580, 9063160, 18126320]

約数ペア:

[(1, 18126320), (2, 9063160), (4, 4531580), (5, 3625264), (8, 2265790), (10, 1812632), (16, 1132895), (20, 906316), (31, 584720), (40, 453158), (62, 292360), (80, 226579), (124, 146180), (155, 116944), (248, 73090), (310, 58472), (496, 36545), (620, 29236), (1240, 14618), (2480, 7309)]