19566180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1531}}^1$

素因数の和:1617

約数の個数: 72

約数和(自身を含む): 60225984

約数和(自身を除く): 40659804

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, 1531, 2130, 2556, 3062, 3195, 4260, 4593, 6124, 6390, 7655, 9186, 12780, 13779, 15310, 18372, 22965, 27558, 30620, 45930, 55116, 68895, 91860, 108701, 137790, 217402, 275580, 326103, 434804, 543505, 652206, 978309, 1087010, 1304412, 1630515, 1956618, 2174020, 3261030, 3913236, 4891545, 6522060, 9783090, 19566180]

約数ペア:

[(1, 19566180), (2, 9783090), (3, 6522060), (4, 4891545), (5, 3913236), (6, 3261030), (9, 2174020), (10, 1956618), (12, 1630515), (15, 1304412), (18, 1087010), (20, 978309), (30, 652206), (36, 543505), (45, 434804), (60, 326103), (71, 275580), (90, 217402), (142, 137790), (180, 108701), (213, 91860), (284, 68895), (355, 55116), (426, 45930), (639, 30620), (710, 27558), (852, 22965), (1065, 18372), (1278, 15310), (1420, 13779), (1531, 12780), (2130, 9186), (2556, 7655), (3062, 6390), (3195, 6124), (4260, 4593)]