78556480

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{7919}}^1$

素因数の和:7967

約数の個数: 56

約数和(自身を含む): 193121280

約数和(自身を除く): 114564800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 1240, 1984, 2480, 4960, 7919, 9920, 15838, 31676, 39595, 63352, 79190, 126704, 158380, 245489, 253408, 316760, 490978, 506816, 633520, 981956, 1227445, 1267040, 1963912, 2454890, 2534080, 3927824, 4909780, 7855648, 9819560, 15711296, 19639120, 39278240, 78556480]

約数ペア:

[(1, 78556480), (2, 39278240), (4, 19639120), (5, 15711296), (8, 9819560), (10, 7855648), (16, 4909780), (20, 3927824), (31, 2534080), (32, 2454890), (40, 1963912), (62, 1267040), (64, 1227445), (80, 981956), (124, 633520), (155, 506816), (160, 490978), (248, 316760), (310, 253408), (320, 245489), (496, 158380), (620, 126704), (992, 79190), (1240, 63352), (1984, 39595), (2480, 31676), (4960, 15838), (7919, 9920)]