20112126640

素因数分解:

$2^4\times 5^1\times {\mathrm{163}}^1\times {\mathrm{383}}^1\times {\mathrm{4027}}^1$

素因数の和:4586

約数の個数: 80

約数和(自身を含む): 47182123008

約数和(自身を除く): 27069996368

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 163, 326, 383, 652, 766, 815, 1304, 1532, 1630, 1915, 2608, 3064, 3260, 3830, 4027, 6128, 6520, 7660, 8054, 13040, 15320, 16108, 20135, 30640, 32216, 40270, 62429, 64432, 80540, 124858, 161080, 249716, 312145, 322160, 499432, 624290, 656401, 998864, 1248580, 1312802, 1542341, 2497160, 2625604, 3084682, 3282005, 4994320, 5251208, 6169364, 6564010, 7711705, 10502416, 12338728, 13128020, 15423410, 24677456, 26256040, 30846820, 52512080, 61693640, 123387280, 251401583, 502803166, 1005606332, 1257007915, 2011212664, 2514015830, 4022425328, 5028031660, 10056063320, 20112126640]

約数ペア:

[(1, 20112126640), (2, 10056063320), (4, 5028031660), (5, 4022425328), (8, 2514015830), (10, 2011212664), (16, 1257007915), (20, 1005606332), (40, 502803166), (80, 251401583), (163, 123387280), (326, 61693640), (383, 52512080), (652, 30846820), (766, 26256040), (815, 24677456), (1304, 15423410), (1532, 13128020), (1630, 12338728), (1915, 10502416), (2608, 7711705), (3064, 6564010), (3260, 6169364), (3830, 5251208), (4027, 4994320), (6128, 3282005), (6520, 3084682), (7660, 2625604), (8054, 2497160), (13040, 1542341), (15320, 1312802), (16108, 1248580), (20135, 998864), (30640, 656401), (32216, 624290), (40270, 499432), (62429, 322160), (64432, 312145), (80540, 249716), (124858, 161080)]