68726920

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{211}}^1\times {\mathrm{479}}^1$

素因数の和:718

約数の個数: 64

約数和(自身を含む): 164851200

約数和(自身を除く): 96124280

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 211, 340, 422, 479, 680, 844, 958, 1055, 1688, 1916, 2110, 2395, 3587, 3832, 4220, 4790, 7174, 8143, 8440, 9580, 14348, 16286, 17935, 19160, 28696, 32572, 35870, 40715, 65144, 71740, 81430, 101069, 143480, 162860, 202138, 325720, 404276, 505345, 808552, 1010690, 1718173, 2021380, 3436346, 4042760, 6872692, 8590865, 13745384, 17181730, 34363460, 68726920]

約数ペア:

[(1, 68726920), (2, 34363460), (4, 17181730), (5, 13745384), (8, 8590865), (10, 6872692), (17, 4042760), (20, 3436346), (34, 2021380), (40, 1718173), (68, 1010690), (85, 808552), (136, 505345), (170, 404276), (211, 325720), (340, 202138), (422, 162860), (479, 143480), (680, 101069), (844, 81430), (958, 71740), (1055, 65144), (1688, 40715), (1916, 35870), (2110, 32572), (2395, 28696), (3587, 19160), (3832, 17935), (4220, 16286), (4790, 14348), (7174, 9580), (8143, 8440)]