207612500

素因数分解:

$2^2\times 5^5\times {\mathrm{17}}^1\times {\mathrm{977}}^1$

素因数の和:1023

約数の個数: 72

約数和(自身を含む): 481328568

約数和(自身を除く): 273716068

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 125, 170, 250, 340, 425, 500, 625, 850, 977, 1250, 1700, 1954, 2125, 2500, 3125, 3908, 4250, 4885, 6250, 8500, 9770, 10625, 12500, 16609, 19540, 21250, 24425, 33218, 42500, 48850, 53125, 66436, 83045, 97700, 106250, 122125, 166090, 212500, 244250, 332180, 415225, 488500, 610625, 830450, 1221250, 1660900, 2076125, 2442500, 3053125, 4152250, 6106250, 8304500, 10380625, 12212500, 20761250, 41522500, 51903125, 103806250, 207612500]

約数ペア:

[(1, 207612500), (2, 103806250), (4, 51903125), (5, 41522500), (10, 20761250), (17, 12212500), (20, 10380625), (25, 8304500), (34, 6106250), (50, 4152250), (68, 3053125), (85, 2442500), (100, 2076125), (125, 1660900), (170, 1221250), (250, 830450), (340, 610625), (425, 488500), (500, 415225), (625, 332180), (850, 244250), (977, 212500), (1250, 166090), (1700, 122125), (1954, 106250), (2125, 97700), (2500, 83045), (3125, 66436), (3908, 53125), (4250, 48850), (4885, 42500), (6250, 33218), (8500, 24425), (9770, 21250), (10625, 19540), (12500, 16609)]