858780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{367}}^1$

素因数の和:395

約数の個数: 72

約数和(自身を含む): 2812992

約数和(自身を除く): 1954212

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, 367, 390, 468, 585, 734, 780, 1101, 1170, 1468, 1835, 2202, 2340, 3303, 3670, 4404, 4771, 5505, 6606, 7340, 9542, 11010, 13212, 14313, 16515, 19084, 22020, 23855, 28626, 33030, 42939, 47710, 57252, 66060, 71565, 85878, 95420, 143130, 171756, 214695, 286260, 429390, 858780]

約数ペア:

[(1, 858780), (2, 429390), (3, 286260), (4, 214695), (5, 171756), (6, 143130), (9, 95420), (10, 85878), (12, 71565), (13, 66060), (15, 57252), (18, 47710), (20, 42939), (26, 33030), (30, 28626), (36, 23855), (39, 22020), (45, 19084), (52, 16515), (60, 14313), (65, 13212), (78, 11010), (90, 9542), (117, 7340), (130, 6606), (156, 5505), (180, 4771), (195, 4404), (234, 3670), (260, 3303), (367, 2340), (390, 2202), (468, 1835), (585, 1468), (734, 1170), (780, 1101)]