90009990

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{142873}}^1$

素因数の和:142893

約数の個数: 48

約数和(自身を含む): 267460128

約数和(自身を除く): 177450138

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 142873, 285746, 428619, 714365, 857238, 1000111, 1285857, 1428730, 2000222, 2143095, 2571714, 3000333, 4286190, 5000555, 6000666, 6429285, 9000999, 10001110, 12858570, 15001665, 18001998, 30003330, 45004995, 90009990]

約数ペア:

[(1, 90009990), (2, 45004995), (3, 30003330), (5, 18001998), (6, 15001665), (7, 12858570), (9, 10001110), (10, 9000999), (14, 6429285), (15, 6000666), (18, 5000555), (21, 4286190), (30, 3000333), (35, 2571714), (42, 2143095), (45, 2000222), (63, 1428730), (70, 1285857), (90, 1000111), (105, 857238), (126, 714365), (210, 428619), (315, 285746), (630, 142873)]