20292424

素因数分解:

$2^3\times {\mathrm{17}}^2\times {\mathrm{67}}^1\times {\mathrm{131}}^1$

素因数の和:238

約数の個数: 48

約数和(自身を含む): 41334480

約数和(自身を除く): 21042056

約数列:

[1, 2, 4, 8, 17, 34, 67, 68, 131, 134, 136, 262, 268, 289, 524, 536, 578, 1048, 1139, 1156, 2227, 2278, 2312, 4454, 4556, 8777, 8908, 9112, 17554, 17816, 19363, 35108, 37859, 38726, 70216, 75718, 77452, 149209, 151436, 154904, 298418, 302872, 596836, 1193672, 2536553, 5073106, 10146212, 20292424]

約数ペア:

[(1, 20292424), (2, 10146212), (4, 5073106), (8, 2536553), (17, 1193672), (34, 596836), (67, 302872), (68, 298418), (131, 154904), (134, 151436), (136, 149209), (262, 77452), (268, 75718), (289, 70216), (524, 38726), (536, 37859), (578, 35108), (1048, 19363), (1139, 17816), (1156, 17554), (2227, 9112), (2278, 8908), (2312, 8777), (4454, 4556)]