8400500

素因数分解:

$2^2\times 5^3\times {\mathrm{53}}^1\times {\mathrm{317}}^1$

素因数の和:389

約数の個数: 48

約数和(自身を含む): 18751824

約数和(自身を除く): 10351324

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 53, 100, 106, 125, 212, 250, 265, 317, 500, 530, 634, 1060, 1268, 1325, 1585, 2650, 3170, 5300, 6340, 6625, 7925, 13250, 15850, 16801, 26500, 31700, 33602, 39625, 67204, 79250, 84005, 158500, 168010, 336020, 420025, 840050, 1680100, 2100125, 4200250, 8400500]

約数ペア:

[(1, 8400500), (2, 4200250), (4, 2100125), (5, 1680100), (10, 840050), (20, 420025), (25, 336020), (50, 168010), (53, 158500), (100, 84005), (106, 79250), (125, 67204), (212, 39625), (250, 33602), (265, 31700), (317, 26500), (500, 16801), (530, 15850), (634, 13250), (1060, 7925), (1268, 6625), (1325, 6340), (1585, 5300), (2650, 3170)]