64805520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{20771}}^1$

素因数の和:20800

約数の個数: 80

約数和(自身を含む): 216361152

約数和(自身を除く): 151555632

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 20771, 41542, 62313, 83084, 103855, 124626, 166168, 207710, 249252, 270023, 311565, 332336, 415420, 498504, 540046, 623130, 810069, 830840, 997008, 1080092, 1246260, 1350115, 1620138, 1661680, 2160184, 2492520, 2700230, 3240276, 4050345, 4320368, 4985040, 5400460, 6480552, 8100690, 10800920, 12961104, 16201380, 21601840, 32402760, 64805520]

約数ペア:

[(1, 64805520), (2, 32402760), (3, 21601840), (4, 16201380), (5, 12961104), (6, 10800920), (8, 8100690), (10, 6480552), (12, 5400460), (13, 4985040), (15, 4320368), (16, 4050345), (20, 3240276), (24, 2700230), (26, 2492520), (30, 2160184), (39, 1661680), (40, 1620138), (48, 1350115), (52, 1246260), (60, 1080092), (65, 997008), (78, 830840), (80, 810069), (104, 623130), (120, 540046), (130, 498504), (156, 415420), (195, 332336), (208, 311565), (240, 270023), (260, 249252), (312, 207710), (390, 166168), (520, 124626), (624, 103855), (780, 83084), (1040, 62313), (1560, 41542), (3120, 20771)]