16920440

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{167}}^1$

素因数の和:344

約数の個数: 64

約数和(自身を含む): 40824000

約数和(自身を除く): 23903560

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 149, 167, 170, 298, 334, 340, 596, 668, 680, 745, 835, 1192, 1336, 1490, 1670, 2533, 2839, 2980, 3340, 5066, 5678, 5960, 6680, 10132, 11356, 12665, 14195, 20264, 22712, 24883, 25330, 28390, 49766, 50660, 56780, 99532, 101320, 113560, 124415, 199064, 248830, 423011, 497660, 846022, 995320, 1692044, 2115055, 3384088, 4230110, 8460220, 16920440]

約数ペア:

[(1, 16920440), (2, 8460220), (4, 4230110), (5, 3384088), (8, 2115055), (10, 1692044), (17, 995320), (20, 846022), (34, 497660), (40, 423011), (68, 248830), (85, 199064), (136, 124415), (149, 113560), (167, 101320), (170, 99532), (298, 56780), (334, 50660), (340, 49766), (596, 28390), (668, 25330), (680, 24883), (745, 22712), (835, 20264), (1192, 14195), (1336, 12665), (1490, 11356), (1670, 10132), (2533, 6680), (2839, 5960), (2980, 5678), (3340, 5066)]