20199451760

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^2\times {\mathrm{699427}}^1$

素因数の和:699478

約数の個数: 60

約数和(自身を含む): 49565664648

約数和(自身を除く): 29366212888

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 361, 380, 722, 760, 1444, 1520, 1805, 2888, 3610, 5776, 7220, 14440, 28880, 699427, 1398854, 2797708, 3497135, 5595416, 6994270, 11190832, 13289113, 13988540, 26578226, 27977080, 53156452, 55954160, 66445565, 106312904, 132891130, 212625808, 252493147, 265782260, 504986294, 531564520, 1009972588, 1063129040, 1262465735, 2019945176, 2524931470, 4039890352, 5049862940, 10099725880, 20199451760]

約数ペア:

[(1, 20199451760), (2, 10099725880), (4, 5049862940), (5, 4039890352), (8, 2524931470), (10, 2019945176), (16, 1262465735), (19, 1063129040), (20, 1009972588), (38, 531564520), (40, 504986294), (76, 265782260), (80, 252493147), (95, 212625808), (152, 132891130), (190, 106312904), (304, 66445565), (361, 55954160), (380, 53156452), (722, 27977080), (760, 26578226), (1444, 13988540), (1520, 13289113), (1805, 11190832), (2888, 6994270), (3610, 5595416), (5776, 3497135), (7220, 2797708), (14440, 1398854), (28880, 699427)]