18755920

素因数分解:

$2^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{2417}}^1$

素因数の和:2527

約数の個数: 40

約数和(自身を含む): 44075304

約数和(自身を除く): 25319384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97, 194, 388, 485, 776, 970, 1552, 1940, 2417, 3880, 4834, 7760, 9668, 12085, 19336, 24170, 38672, 48340, 96680, 193360, 234449, 468898, 937796, 1172245, 1875592, 2344490, 3751184, 4688980, 9377960, 18755920]

約数ペア:

[(1, 18755920), (2, 9377960), (4, 4688980), (5, 3751184), (8, 2344490), (10, 1875592), (16, 1172245), (20, 937796), (40, 468898), (80, 234449), (97, 193360), (194, 96680), (388, 48340), (485, 38672), (776, 24170), (970, 19336), (1552, 12085), (1940, 9668), (2417, 7760), (3880, 4834)]