42647320

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{211}}^1$

素因数の和:416

約数の個数: 64

約数和(自身を含む): 100131840

約数和(自身を除く): 57484520

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 163, 211, 248, 310, 326, 422, 620, 652, 815, 844, 1055, 1240, 1304, 1630, 1688, 2110, 3260, 4220, 5053, 6520, 6541, 8440, 10106, 13082, 20212, 25265, 26164, 32705, 34393, 40424, 50530, 52328, 65410, 68786, 101060, 130820, 137572, 171965, 202120, 261640, 275144, 343930, 687860, 1066183, 1375720, 2132366, 4264732, 5330915, 8529464, 10661830, 21323660, 42647320]

約数ペア:

[(1, 42647320), (2, 21323660), (4, 10661830), (5, 8529464), (8, 5330915), (10, 4264732), (20, 2132366), (31, 1375720), (40, 1066183), (62, 687860), (124, 343930), (155, 275144), (163, 261640), (211, 202120), (248, 171965), (310, 137572), (326, 130820), (422, 101060), (620, 68786), (652, 65410), (815, 52328), (844, 50530), (1055, 40424), (1240, 34393), (1304, 32705), (1630, 26164), (1688, 25265), (2110, 20212), (3260, 13082), (4220, 10106), (5053, 8440), (6520, 6541)]