128156480

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{12919}}^1$

素因数の和:12967

約数の個数: 56

約数和(自身を含む): 315041280

約数和(自身を除く): 186884800

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, 9920, 12919, 25838, 51676, 64595, 103352, 129190, 206704, 258380, 400489, 413408, 516760, 800978, 826816, 1033520, 1601956, 2002445, 2067040, 3203912, 4004890, 4134080, 6407824, 8009780, 12815648, 16019560, 25631296, 32039120, 64078240, 128156480]

約数ペア:

[(1, 128156480), (2, 64078240), (4, 32039120), (5, 25631296), (8, 16019560), (10, 12815648), (16, 8009780), (20, 6407824), (31, 4134080), (32, 4004890), (40, 3203912), (62, 2067040), (64, 2002445), (80, 1601956), (124, 1033520), (155, 826816), (160, 800978), (248, 516760), (310, 413408), (320, 400489), (496, 258380), (620, 206704), (992, 129190), (1240, 103352), (1984, 64595), (2480, 51676), (4960, 25838), (9920, 12919)]