77721250

素因数分解:

$2^1\times 5^4\times {\mathrm{97}}^1\times {\mathrm{641}}^1$

素因数の和:760

約数の個数: 40

約数和(自身を含む): 147412188

約数和(自身を除く): 69690938

約数列:

[1, 2, 5, 10, 25, 50, 97, 125, 194, 250, 485, 625, 641, 970, 1250, 1282, 2425, 3205, 4850, 6410, 12125, 16025, 24250, 32050, 60625, 62177, 80125, 121250, 124354, 160250, 310885, 400625, 621770, 801250, 1554425, 3108850, 7772125, 15544250, 38860625, 77721250]

約数ペア:

[(1, 77721250), (2, 38860625), (5, 15544250), (10, 7772125), (25, 3108850), (50, 1554425), (97, 801250), (125, 621770), (194, 400625), (250, 310885), (485, 160250), (625, 124354), (641, 121250), (970, 80125), (1250, 62177), (1282, 60625), (2425, 32050), (3205, 24250), (4850, 16025), (6410, 12125)]