128424320

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{6473}}^1$

素因数の和:6523

約数の個数: 64

約数和(自身を含む): 316967040

約数和(自身を除く): 188542720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1984, 2480, 3968, 4960, 6473, 9920, 12946, 19840, 25892, 32365, 51784, 64730, 103568, 129460, 200663, 207136, 258920, 401326, 414272, 517840, 802652, 828544, 1003315, 1035680, 1605304, 2006630, 2071360, 3210608, 4013260, 4142720, 6421216, 8026520, 12842432, 16053040, 25684864, 32106080, 64212160, 128424320]

約数ペア:

[(1, 128424320), (2, 64212160), (4, 32106080), (5, 25684864), (8, 16053040), (10, 12842432), (16, 8026520), (20, 6421216), (31, 4142720), (32, 4013260), (40, 3210608), (62, 2071360), (64, 2006630), (80, 1605304), (124, 1035680), (128, 1003315), (155, 828544), (160, 802652), (248, 517840), (310, 414272), (320, 401326), (496, 258920), (620, 207136), (640, 200663), (992, 129460), (1240, 103568), (1984, 64730), (2480, 51784), (3968, 32365), (4960, 25892), (6473, 19840), (9920, 12946)]