18715300

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1$

素因数の和:241

約数の個数: 72

約数和(自身を含む): 43825320

約数和(自身を除く): 25110020

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 101, 109, 170, 202, 218, 340, 404, 425, 436, 505, 545, 850, 1010, 1090, 1700, 1717, 1853, 2020, 2180, 2525, 2725, 3434, 3706, 5050, 5450, 6868, 7412, 8585, 9265, 10100, 10900, 11009, 17170, 18530, 22018, 34340, 37060, 42925, 44036, 46325, 55045, 85850, 92650, 110090, 171700, 185300, 187153, 220180, 275225, 374306, 550450, 748612, 935765, 1100900, 1871530, 3743060, 4678825, 9357650, 18715300]

約数ペア:

[(1, 18715300), (2, 9357650), (4, 4678825), (5, 3743060), (10, 1871530), (17, 1100900), (20, 935765), (25, 748612), (34, 550450), (50, 374306), (68, 275225), (85, 220180), (100, 187153), (101, 185300), (109, 171700), (170, 110090), (202, 92650), (218, 85850), (340, 55045), (404, 46325), (425, 44036), (436, 42925), (505, 37060), (545, 34340), (850, 22018), (1010, 18530), (1090, 17170), (1700, 11009), (1717, 10900), (1853, 10100), (2020, 9265), (2180, 8585), (2525, 7412), (2725, 6868), (3434, 5450), (3706, 5050)]