205285140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{16063}}^1$

素因数の和:16149

約数の個数: 72

約数和(自身を含む): 631507968

約数和(自身を除く): 426222828

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 90, 142, 180, 213, 284, 355, 426, 639, 710, 852, 1065, 1278, 1420, 2130, 2556, 3195, 4260, 6390, 12780, 16063, 32126, 48189, 64252, 80315, 96378, 144567, 160630, 192756, 240945, 289134, 321260, 481890, 578268, 722835, 963780, 1140473, 1445670, 2280946, 2891340, 3421419, 4561892, 5702365, 6842838, 10264257, 11404730, 13685676, 17107095, 20528514, 22809460, 34214190, 41057028, 51321285, 68428380, 102642570, 205285140]

約数ペア:

[(1, 205285140), (2, 102642570), (3, 68428380), (4, 51321285), (5, 41057028), (6, 34214190), (9, 22809460), (10, 20528514), (12, 17107095), (15, 13685676), (18, 11404730), (20, 10264257), (30, 6842838), (36, 5702365), (45, 4561892), (60, 3421419), (71, 2891340), (90, 2280946), (142, 1445670), (180, 1140473), (213, 963780), (284, 722835), (355, 578268), (426, 481890), (639, 321260), (710, 289134), (852, 240945), (1065, 192756), (1278, 160630), (1420, 144567), (2130, 96378), (2556, 80315), (3195, 64252), (4260, 48189), (6390, 32126), (12780, 16063)]