811980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{347}}^1$

素因数の和:375

約数の個数: 72

約数和(自身を含む): 2660112

約数和(自身を除く): 1848132

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 347, 390, 468, 585, 694, 780, 1041, 1170, 1388, 1735, 2082, 2340, 3123, 3470, 4164, 4511, 5205, 6246, 6940, 9022, 10410, 12492, 13533, 15615, 18044, 20820, 22555, 27066, 31230, 40599, 45110, 54132, 62460, 67665, 81198, 90220, 135330, 162396, 202995, 270660, 405990, 811980]

約数ペア:

[(1, 811980), (2, 405990), (3, 270660), (4, 202995), (5, 162396), (6, 135330), (9, 90220), (10, 81198), (12, 67665), (13, 62460), (15, 54132), (18, 45110), (20, 40599), (26, 31230), (30, 27066), (36, 22555), (39, 20820), (45, 18044), (52, 15615), (60, 13533), (65, 12492), (78, 10410), (90, 9022), (117, 6940), (130, 6246), (156, 5205), (180, 4511), (195, 4164), (234, 3470), (260, 3123), (347, 2340), (390, 2082), (468, 1735), (585, 1388), (694, 1170), (780, 1041)]