8871981100240

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{2609}}^1\times {\mathrm{305803}}^1$

素因数の和:308564

約数の個数: 80

約数和(自身を含む): 20783785377600

約数和(自身を除く): 11911804277360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 278, 556, 695, 1112, 1390, 2224, 2609, 2780, 5218, 5560, 10436, 11120, 13045, 20872, 26090, 41744, 52180, 104360, 208720, 305803, 362651, 611606, 725302, 1223212, 1450604, 1529015, 1813255, 2446424, 2901208, 3058030, 3626510, 4892848, 5802416, 6116060, 7253020, 12232120, 14506040, 24464240, 29012080, 42506617, 85013234, 170026468, 212533085, 340052936, 425066170, 680105872, 797840027, 850132340, 1595680054, 1700264680, 3191360108, 3400529360, 3989200135, 6382720216, 7978400270, 12765440432, 15956800540, 31913601080, 63827202160, 110899763753, 221799527506, 443599055012, 554498818765, 887198110024, 1108997637530, 1774396220048, 2217995275060, 4435990550120, 8871981100240]

約数ペア:

[(1, 8871981100240), (2, 4435990550120), (4, 2217995275060), (5, 1774396220048), (8, 1108997637530), (10, 887198110024), (16, 554498818765), (20, 443599055012), (40, 221799527506), (80, 110899763753), (139, 63827202160), (278, 31913601080), (556, 15956800540), (695, 12765440432), (1112, 7978400270), (1390, 6382720216), (2224, 3989200135), (2609, 3400529360), (2780, 3191360108), (5218, 1700264680), (5560, 1595680054), (10436, 850132340), (11120, 797840027), (13045, 680105872), (20872, 425066170), (26090, 340052936), (41744, 212533085), (52180, 170026468), (104360, 85013234), (208720, 42506617), (305803, 29012080), (362651, 24464240), (611606, 14506040), (725302, 12232120), (1223212, 7253020), (1450604, 6116060), (1529015, 5802416), (1813255, 4892848), (2446424, 3626510), (2901208, 3058030)]