18818590

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1$

素因数の和:217

約数の個数: 64

約数和(自身を含む): 40642560

約数和(自身を除く): 21823970

約数列:

[1, 2, 5, 7, 10, 14, 35, 41, 70, 79, 82, 83, 158, 166, 205, 287, 395, 410, 415, 553, 574, 581, 790, 830, 1106, 1162, 1435, 2765, 2870, 2905, 3239, 3403, 5530, 5810, 6478, 6557, 6806, 13114, 16195, 17015, 22673, 23821, 32390, 32785, 34030, 45346, 45899, 47642, 65570, 91798, 113365, 119105, 226730, 229495, 238210, 268837, 458990, 537674, 1344185, 1881859, 2688370, 3763718, 9409295, 18818590]

約数ペア:

[(1, 18818590), (2, 9409295), (5, 3763718), (7, 2688370), (10, 1881859), (14, 1344185), (35, 537674), (41, 458990), (70, 268837), (79, 238210), (82, 229495), (83, 226730), (158, 119105), (166, 113365), (205, 91798), (287, 65570), (395, 47642), (410, 45899), (415, 45346), (553, 34030), (574, 32785), (581, 32390), (790, 23821), (830, 22673), (1106, 17015), (1162, 16195), (1435, 13114), (2765, 6806), (2870, 6557), (2905, 6478), (3239, 5810), (3403, 5530)]