12147804920

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{128521}}^1$

素因数の和:128688

約数の個数: 64

約数和(自身を含む): 29148789600

約数和(自身を除く): 17000984680

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 139, 170, 278, 340, 556, 680, 695, 1112, 1390, 2363, 2780, 4726, 5560, 9452, 11815, 18904, 23630, 47260, 94520, 128521, 257042, 514084, 642605, 1028168, 1285210, 2184857, 2570420, 4369714, 5140840, 8739428, 10924285, 17478856, 17864419, 21848570, 35728838, 43697140, 71457676, 87394280, 89322095, 142915352, 178644190, 303695123, 357288380, 607390246, 714576760, 1214780492, 1518475615, 2429560984, 3036951230, 6073902460, 12147804920]

約数ペア:

[(1, 12147804920), (2, 6073902460), (4, 3036951230), (5, 2429560984), (8, 1518475615), (10, 1214780492), (17, 714576760), (20, 607390246), (34, 357288380), (40, 303695123), (68, 178644190), (85, 142915352), (136, 89322095), (139, 87394280), (170, 71457676), (278, 43697140), (340, 35728838), (556, 21848570), (680, 17864419), (695, 17478856), (1112, 10924285), (1390, 8739428), (2363, 5140840), (2780, 4369714), (4726, 2570420), (5560, 2184857), (9452, 1285210), (11815, 1028168), (18904, 642605), (23630, 514084), (47260, 257042), (94520, 128521)]