127500980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{2549}}^1$

素因数の和:2660

約数の個数: 48

約数和(自身を含む): 278888400

約数和(自身を除く): 151387420

約数列:

[1, 2, 4, 5, 10, 20, 41, 61, 82, 122, 164, 205, 244, 305, 410, 610, 820, 1220, 2501, 2549, 5002, 5098, 10004, 10196, 12505, 12745, 25010, 25490, 50020, 50980, 104509, 155489, 209018, 310978, 418036, 522545, 621956, 777445, 1045090, 1554890, 2090180, 3109780, 6375049, 12750098, 25500196, 31875245, 63750490, 127500980]

約数ペア:

[(1, 127500980), (2, 63750490), (4, 31875245), (5, 25500196), (10, 12750098), (20, 6375049), (41, 3109780), (61, 2090180), (82, 1554890), (122, 1045090), (164, 777445), (205, 621956), (244, 522545), (305, 418036), (410, 310978), (610, 209018), (820, 155489), (1220, 104509), (2501, 50980), (2549, 50020), (5002, 25490), (5098, 25010), (10004, 12745), (10196, 12505)]