64880500

素因数分解:

$2^2\times 5^3\times {\mathrm{17}}^2\times {\mathrm{449}}^1$

素因数の和:502

約数の個数: 72

約数和(自身を含む): 150859800

約数和(自身を除く): 85979300

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 125, 170, 250, 289, 340, 425, 449, 500, 578, 850, 898, 1156, 1445, 1700, 1796, 2125, 2245, 2890, 4250, 4490, 5780, 7225, 7633, 8500, 8980, 11225, 14450, 15266, 22450, 28900, 30532, 36125, 38165, 44900, 56125, 72250, 76330, 112250, 129761, 144500, 152660, 190825, 224500, 259522, 381650, 519044, 648805, 763300, 954125, 1297610, 1908250, 2595220, 3244025, 3816500, 6488050, 12976100, 16220125, 32440250, 64880500]

約数ペア:

[(1, 64880500), (2, 32440250), (4, 16220125), (5, 12976100), (10, 6488050), (17, 3816500), (20, 3244025), (25, 2595220), (34, 1908250), (50, 1297610), (68, 954125), (85, 763300), (100, 648805), (125, 519044), (170, 381650), (250, 259522), (289, 224500), (340, 190825), (425, 152660), (449, 144500), (500, 129761), (578, 112250), (850, 76330), (898, 72250), (1156, 56125), (1445, 44900), (1700, 38165), (1796, 36125), (2125, 30532), (2245, 28900), (2890, 22450), (4250, 15266), (4490, 14450), (5780, 11225), (7225, 8980), (7633, 8500)]