81845460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{2039}}^1$

素因数の和:2277

約数の個数: 72

約数和(自身を含む): 249500160

約数和(自身を除く): 167654700

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 223, 446, 669, 892, 1115, 1338, 2007, 2039, 2230, 2676, 3345, 4014, 4078, 4460, 6117, 6690, 8028, 8156, 10035, 10195, 12234, 13380, 18351, 20070, 20390, 24468, 30585, 36702, 40140, 40780, 61170, 73404, 91755, 122340, 183510, 367020, 454697, 909394, 1364091, 1818788, 2273485, 2728182, 4092273, 4546970, 5456364, 6820455, 8184546, 9093940, 13640910, 16369092, 20461365, 27281820, 40922730, 81845460]

約数ペア:

[(1, 81845460), (2, 40922730), (3, 27281820), (4, 20461365), (5, 16369092), (6, 13640910), (9, 9093940), (10, 8184546), (12, 6820455), (15, 5456364), (18, 4546970), (20, 4092273), (30, 2728182), (36, 2273485), (45, 1818788), (60, 1364091), (90, 909394), (180, 454697), (223, 367020), (446, 183510), (669, 122340), (892, 91755), (1115, 73404), (1338, 61170), (2007, 40780), (2039, 40140), (2230, 36702), (2676, 30585), (3345, 24468), (4014, 20390), (4078, 20070), (4460, 18351), (6117, 13380), (6690, 12234), (8028, 10195), (8156, 10035)]