25507820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{199}}^1$

素因数の和:267

約数の個数: 96

約数和(自身を含む): 63504000

約数和(自身を除く): 37996180

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 29, 34, 52, 58, 65, 68, 85, 116, 130, 145, 170, 199, 221, 260, 290, 340, 377, 398, 442, 493, 580, 754, 796, 884, 986, 995, 1105, 1508, 1885, 1972, 1990, 2210, 2465, 2587, 3383, 3770, 3980, 4420, 4930, 5174, 5771, 6409, 6766, 7540, 9860, 10348, 11542, 12818, 12935, 13532, 16915, 23084, 25636, 25870, 28855, 32045, 33830, 43979, 51740, 57710, 64090, 67660, 75023, 87958, 98107, 115420, 128180, 150046, 175916, 196214, 219895, 300092, 375115, 392428, 439790, 490535, 750230, 879580, 981070, 1275391, 1500460, 1962140, 2550782, 5101564, 6376955, 12753910, 25507820]

約数ペア:

[(1, 25507820), (2, 12753910), (4, 6376955), (5, 5101564), (10, 2550782), (13, 1962140), (17, 1500460), (20, 1275391), (26, 981070), (29, 879580), (34, 750230), (52, 490535), (58, 439790), (65, 392428), (68, 375115), (85, 300092), (116, 219895), (130, 196214), (145, 175916), (170, 150046), (199, 128180), (221, 115420), (260, 98107), (290, 87958), (340, 75023), (377, 67660), (398, 64090), (442, 57710), (493, 51740), (580, 43979), (754, 33830), (796, 32045), (884, 28855), (986, 25870), (995, 25636), (1105, 23084), (1508, 16915), (1885, 13532), (1972, 12935), (1990, 12818), (2210, 11542), (2465, 10348), (2587, 9860), (3383, 7540), (3770, 6766), (3980, 6409), (4420, 5771), (4930, 5174)]