20347600016

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{661}}^1\times {\mathrm{113173}}^1$

素因数の和:113859

約数の個数: 40

約数和(自身を含む): 41806022904

約数和(自身を除く): 21458422888

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 661, 1322, 2644, 5288, 10576, 11237, 22474, 44948, 89896, 113173, 179792, 226346, 452692, 905384, 1810768, 1923941, 3847882, 7695764, 15391528, 30783056, 74807353, 149614706, 299229412, 598458824, 1196917648, 1271725001, 2543450002, 5086900004, 10173800008, 20347600016]

約数ペア:

[(1, 20347600016), (2, 10173800008), (4, 5086900004), (8, 2543450002), (16, 1271725001), (17, 1196917648), (34, 598458824), (68, 299229412), (136, 149614706), (272, 74807353), (661, 30783056), (1322, 15391528), (2644, 7695764), (5288, 3847882), (10576, 1923941), (11237, 1810768), (22474, 905384), (44948, 452692), (89896, 226346), (113173, 179792)]