19243760

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{5867}}^1$

素因数の和:5921

約数の個数: 40

約数和(自身を含む): 45840816

約数和(自身を除く): 26597056

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 5867, 11734, 23468, 29335, 46936, 58670, 93872, 117340, 234680, 240547, 469360, 481094, 962188, 1202735, 1924376, 2405470, 3848752, 4810940, 9621880, 19243760]

約数ペア:

[(1, 19243760), (2, 9621880), (4, 4810940), (5, 3848752), (8, 2405470), (10, 1924376), (16, 1202735), (20, 962188), (40, 481094), (41, 469360), (80, 240547), (82, 234680), (164, 117340), (205, 93872), (328, 58670), (410, 46936), (656, 29335), (820, 23468), (1640, 11734), (3280, 5867)]