90287440

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{38917}}^1$

素因数の和:38959

約数の個数: 40

約数和(自身を含む): 217162440

約数和(自身を除く): 126875000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 38917, 77834, 155668, 194585, 311336, 389170, 622672, 778340, 1128593, 1556680, 2257186, 3113360, 4514372, 5642965, 9028744, 11285930, 18057488, 22571860, 45143720, 90287440]

約数ペア:

[(1, 90287440), (2, 45143720), (4, 22571860), (5, 18057488), (8, 11285930), (10, 9028744), (16, 5642965), (20, 4514372), (29, 3113360), (40, 2257186), (58, 1556680), (80, 1128593), (116, 778340), (145, 622672), (232, 389170), (290, 311336), (464, 194585), (580, 155668), (1160, 77834), (2320, 38917)]