26425640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{211}}^1$

素因数の和:354

約数の個数: 64

約数和(自身を含む): 62277120

約数和(自身を除く): 35851480

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 101, 124, 155, 202, 211, 248, 310, 404, 422, 505, 620, 808, 844, 1010, 1055, 1240, 1688, 2020, 2110, 3131, 4040, 4220, 6262, 6541, 8440, 12524, 13082, 15655, 21311, 25048, 26164, 31310, 32705, 42622, 52328, 62620, 65410, 85244, 106555, 125240, 130820, 170488, 213110, 261640, 426220, 660641, 852440, 1321282, 2642564, 3303205, 5285128, 6606410, 13212820, 26425640]

約数ペア:

[(1, 26425640), (2, 13212820), (4, 6606410), (5, 5285128), (8, 3303205), (10, 2642564), (20, 1321282), (31, 852440), (40, 660641), (62, 426220), (101, 261640), (124, 213110), (155, 170488), (202, 130820), (211, 125240), (248, 106555), (310, 85244), (404, 65410), (422, 62620), (505, 52328), (620, 42622), (808, 32705), (844, 31310), (1010, 26164), (1055, 25048), (1240, 21311), (1688, 15655), (2020, 13082), (2110, 12524), (3131, 8440), (4040, 6541), (4220, 6262)]