204802020

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{126421}}^1$

素因数の和:126442

約数の個数: 60

約数和(自身を含む): 642476604

約数和(自身を除く): 437674584

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 126421, 252842, 379263, 505684, 632105, 758526, 1137789, 1264210, 1517052, 1896315, 2275578, 2528420, 3413367, 3792630, 4551156, 5688945, 6826734, 7585260, 10240101, 11377890, 13653468, 17066835, 20480202, 22755780, 34133670, 40960404, 51200505, 68267340, 102401010, 204802020]

約数ペア:

[(1, 204802020), (2, 102401010), (3, 68267340), (4, 51200505), (5, 40960404), (6, 34133670), (9, 22755780), (10, 20480202), (12, 17066835), (15, 13653468), (18, 11377890), (20, 10240101), (27, 7585260), (30, 6826734), (36, 5688945), (45, 4551156), (54, 3792630), (60, 3413367), (81, 2528420), (90, 2275578), (108, 1896315), (135, 1517052), (162, 1264210), (180, 1137789), (270, 758526), (324, 632105), (405, 505684), (540, 379263), (810, 252842), (1620, 126421)]