18842290

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:187

約数の個数: 64

約数和(自身を含む): 38568960

約数和(自身を除く): 19726670

約数列:

[1, 2, 5, 10, 17, 23, 34, 46, 61, 79, 85, 115, 122, 158, 170, 230, 305, 391, 395, 610, 782, 790, 1037, 1343, 1403, 1817, 1955, 2074, 2686, 2806, 3634, 3910, 4819, 5185, 6715, 7015, 9085, 9638, 10370, 13430, 14030, 18170, 23851, 24095, 30889, 47702, 48190, 61778, 81923, 110837, 119255, 154445, 163846, 221674, 238510, 308890, 409615, 554185, 819230, 1108370, 1884229, 3768458, 9421145, 18842290]

約数ペア:

[(1, 18842290), (2, 9421145), (5, 3768458), (10, 1884229), (17, 1108370), (23, 819230), (34, 554185), (46, 409615), (61, 308890), (79, 238510), (85, 221674), (115, 163846), (122, 154445), (158, 119255), (170, 110837), (230, 81923), (305, 61778), (391, 48190), (395, 47702), (610, 30889), (782, 24095), (790, 23851), (1037, 18170), (1343, 14030), (1403, 13430), (1817, 10370), (1955, 9638), (2074, 9085), (2686, 7015), (2806, 6715), (3634, 5185), (3910, 4819)]