38735980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{487}}^1$

素因数の和:634

約数の個数: 48

約数和(自身を含む): 84361536

約数和(自身を除く): 45625556

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 97, 164, 194, 205, 388, 410, 485, 487, 820, 970, 974, 1940, 1948, 2435, 3977, 4870, 7954, 9740, 15908, 19885, 19967, 39770, 39934, 47239, 79540, 79868, 94478, 99835, 188956, 199670, 236195, 399340, 472390, 944780, 1936799, 3873598, 7747196, 9683995, 19367990, 38735980]

約数ペア:

[(1, 38735980), (2, 19367990), (4, 9683995), (5, 7747196), (10, 3873598), (20, 1936799), (41, 944780), (82, 472390), (97, 399340), (164, 236195), (194, 199670), (205, 188956), (388, 99835), (410, 94478), (485, 79868), (487, 79540), (820, 47239), (970, 39934), (974, 39770), (1940, 19967), (1948, 19885), (2435, 15908), (3977, 9740), (4870, 7954)]