19184440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{739}}^1$

素因数の和:820

約数の個数: 64

約数和(自身を含む): 47952000

約数和(自身を除く): 28767560

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 59, 88, 110, 118, 220, 236, 295, 440, 472, 590, 649, 739, 1180, 1298, 1478, 2360, 2596, 2956, 3245, 3695, 5192, 5912, 6490, 7390, 8129, 12980, 14780, 16258, 25960, 29560, 32516, 40645, 43601, 65032, 81290, 87202, 162580, 174404, 218005, 325160, 348808, 436010, 479611, 872020, 959222, 1744040, 1918444, 2398055, 3836888, 4796110, 9592220, 19184440]

約数ペア:

[(1, 19184440), (2, 9592220), (4, 4796110), (5, 3836888), (8, 2398055), (10, 1918444), (11, 1744040), (20, 959222), (22, 872020), (40, 479611), (44, 436010), (55, 348808), (59, 325160), (88, 218005), (110, 174404), (118, 162580), (220, 87202), (236, 81290), (295, 65032), (440, 43601), (472, 40645), (590, 32516), (649, 29560), (739, 25960), (1180, 16258), (1298, 14780), (1478, 12980), (2360, 8129), (2596, 7390), (2956, 6490), (3245, 5912), (3695, 5192)]