20121016990

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{10159}}^1$

素因数の和:10357

約数の個数: 64

約数和(自身を含む): 38277515520

約数和(自身を除く): 18156498530

約数列:

[1, 2, 5, 10, 37, 53, 74, 101, 106, 185, 202, 265, 370, 505, 530, 1010, 1961, 3737, 3922, 5353, 7474, 9805, 10159, 10706, 18685, 19610, 20318, 26765, 37370, 50795, 53530, 101590, 198061, 375883, 396122, 538427, 751766, 990305, 1026059, 1076854, 1879415, 1980610, 2052118, 2692135, 3758830, 5130295, 5384270, 10260590, 19921799, 37964183, 39843598, 54381127, 75928366, 99608995, 108762254, 189820915, 199217990, 271905635, 379641830, 543811270, 2012101699, 4024203398, 10060508495, 20121016990]

約数ペア:

[(1, 20121016990), (2, 10060508495), (5, 4024203398), (10, 2012101699), (37, 543811270), (53, 379641830), (74, 271905635), (101, 199217990), (106, 189820915), (185, 108762254), (202, 99608995), (265, 75928366), (370, 54381127), (505, 39843598), (530, 37964183), (1010, 19921799), (1961, 10260590), (3737, 5384270), (3922, 5130295), (5353, 3758830), (7474, 2692135), (9805, 2052118), (10159, 1980610), (10706, 1879415), (18685, 1076854), (19610, 1026059), (20318, 990305), (26765, 751766), (37370, 538427), (50795, 396122), (53530, 375883), (101590, 198061)]