156720460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{199}}^1\times {\mathrm{233}}^1$

素因数の和:467

約数の個数: 72

約数和(自身を含む): 359704800

約数和(自身を除く): 202984340

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 199, 233, 260, 338, 398, 466, 676, 796, 845, 932, 995, 1165, 1690, 1990, 2330, 2587, 3029, 3380, 3980, 4660, 5174, 6058, 10348, 12116, 12935, 15145, 25870, 30290, 33631, 39377, 46367, 51740, 60580, 67262, 78754, 92734, 134524, 157508, 168155, 185468, 196885, 231835, 336310, 393770, 463670, 602771, 672620, 787540, 927340, 1205542, 2411084, 3013855, 6027710, 7836023, 12055420, 15672046, 31344092, 39180115, 78360230, 156720460]

約数ペア:

[(1, 156720460), (2, 78360230), (4, 39180115), (5, 31344092), (10, 15672046), (13, 12055420), (20, 7836023), (26, 6027710), (52, 3013855), (65, 2411084), (130, 1205542), (169, 927340), (199, 787540), (233, 672620), (260, 602771), (338, 463670), (398, 393770), (466, 336310), (676, 231835), (796, 196885), (845, 185468), (932, 168155), (995, 157508), (1165, 134524), (1690, 92734), (1990, 78754), (2330, 67262), (2587, 60580), (3029, 51740), (3380, 46367), (3980, 39377), (4660, 33631), (5174, 30290), (6058, 25870), (10348, 15145), (12116, 12935)]