20458320

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{85243}}^1$

素因数の和:85259

約数の個数: 40

約数和(自身を含む): 63421536

約数和(自身を除く): 42963216

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 85243, 170486, 255729, 340972, 426215, 511458, 681944, 852430, 1022916, 1278645, 1363888, 1704860, 2045832, 2557290, 3409720, 4091664, 5114580, 6819440, 10229160, 20458320]

約数ペア:

[(1, 20458320), (2, 10229160), (3, 6819440), (4, 5114580), (5, 4091664), (6, 3409720), (8, 2557290), (10, 2045832), (12, 1704860), (15, 1363888), (16, 1278645), (20, 1022916), (24, 852430), (30, 681944), (40, 511458), (48, 426215), (60, 340972), (80, 255729), (120, 170486), (240, 85243)]