130128500

素因数分解:

$2^2\times 5^3\times {\mathrm{317}}^1\times {\mathrm{821}}^1$

素因数の和:1157

約数の個数: 48

約数和(自身を含む): 285444432

約数和(自身を除く): 155315932

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 317, 500, 634, 821, 1268, 1585, 1642, 3170, 3284, 4105, 6340, 7925, 8210, 15850, 16420, 20525, 31700, 39625, 41050, 79250, 82100, 102625, 158500, 205250, 260257, 410500, 520514, 1041028, 1301285, 2602570, 5205140, 6506425, 13012850, 26025700, 32532125, 65064250, 130128500]

約数ペア:

[(1, 130128500), (2, 65064250), (4, 32532125), (5, 26025700), (10, 13012850), (20, 6506425), (25, 5205140), (50, 2602570), (100, 1301285), (125, 1041028), (250, 520514), (317, 410500), (500, 260257), (634, 205250), (821, 158500), (1268, 102625), (1585, 82100), (1642, 79250), (3170, 41050), (3284, 39625), (4105, 31700), (6340, 20525), (7925, 16420), (8210, 15850)]