18371900

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{107}}^1$

素因数の和:239

約数の個数: 72

約数和(自身を含む): 43028496

約数和(自身を除く): 24656596

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 101, 107, 170, 202, 214, 340, 404, 425, 428, 505, 535, 850, 1010, 1070, 1700, 1717, 1819, 2020, 2140, 2525, 2675, 3434, 3638, 5050, 5350, 6868, 7276, 8585, 9095, 10100, 10700, 10807, 17170, 18190, 21614, 34340, 36380, 42925, 43228, 45475, 54035, 85850, 90950, 108070, 171700, 181900, 183719, 216140, 270175, 367438, 540350, 734876, 918595, 1080700, 1837190, 3674380, 4592975, 9185950, 18371900]

約数ペア:

[(1, 18371900), (2, 9185950), (4, 4592975), (5, 3674380), (10, 1837190), (17, 1080700), (20, 918595), (25, 734876), (34, 540350), (50, 367438), (68, 270175), (85, 216140), (100, 183719), (101, 181900), (107, 171700), (170, 108070), (202, 90950), (214, 85850), (340, 54035), (404, 45475), (425, 43228), (428, 42925), (505, 36380), (535, 34340), (850, 21614), (1010, 18190), (1070, 17170), (1700, 10807), (1717, 10700), (1819, 10100), (2020, 9095), (2140, 8585), (2525, 7276), (2675, 6868), (3434, 5350), (3638, 5050)]