18454720

素因数分解:

$2^6\times 5^1\times {\mathrm{101}}^1\times {\mathrm{571}}^1$

素因数の和:689

約数の個数: 56

約数和(自身を含む): 44458128

約数和(自身を除く): 26003408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 101, 160, 202, 320, 404, 505, 571, 808, 1010, 1142, 1616, 2020, 2284, 2855, 3232, 4040, 4568, 5710, 6464, 8080, 9136, 11420, 16160, 18272, 22840, 32320, 36544, 45680, 57671, 91360, 115342, 182720, 230684, 288355, 461368, 576710, 922736, 1153420, 1845472, 2306840, 3690944, 4613680, 9227360, 18454720]

約数ペア:

[(1, 18454720), (2, 9227360), (4, 4613680), (5, 3690944), (8, 2306840), (10, 1845472), (16, 1153420), (20, 922736), (32, 576710), (40, 461368), (64, 288355), (80, 230684), (101, 182720), (160, 115342), (202, 91360), (320, 57671), (404, 45680), (505, 36544), (571, 32320), (808, 22840), (1010, 18272), (1142, 16160), (1616, 11420), (2020, 9136), (2284, 8080), (2855, 6464), (3232, 5710), (4040, 4568)]