261567644

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{449}}^1\times {\mathrm{659}}^1$

素因数の和:1142

約数の個数: 48

約数和(自身を含む): 523908000

約数和(自身を除く): 262340356

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 221, 442, 449, 659, 884, 898, 1318, 1796, 2636, 5837, 7633, 8567, 11203, 11674, 15266, 17134, 22406, 23348, 30532, 34268, 44812, 99229, 145639, 198458, 291278, 295891, 396916, 582556, 591782, 1183564, 3846583, 5030147, 7693166, 10060294, 15386332, 20120588, 65391911, 130783822, 261567644]

約数ペア:

[(1, 261567644), (2, 130783822), (4, 65391911), (13, 20120588), (17, 15386332), (26, 10060294), (34, 7693166), (52, 5030147), (68, 3846583), (221, 1183564), (442, 591782), (449, 582556), (659, 396916), (884, 295891), (898, 291278), (1318, 198458), (1796, 145639), (2636, 99229), (5837, 44812), (7633, 34268), (8567, 30532), (11203, 23348), (11674, 22406), (15266, 17134)]