18886480

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{5023}}^1$

素因数の和:5083

約数の個数: 40

約数和(自身を含む): 44854272

約数和(自身を除く): 25967792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 188, 235, 376, 470, 752, 940, 1880, 3760, 5023, 10046, 20092, 25115, 40184, 50230, 80368, 100460, 200920, 236081, 401840, 472162, 944324, 1180405, 1888648, 2360810, 3777296, 4721620, 9443240, 18886480]

約数ペア:

[(1, 18886480), (2, 9443240), (4, 4721620), (5, 3777296), (8, 2360810), (10, 1888648), (16, 1180405), (20, 944324), (40, 472162), (47, 401840), (80, 236081), (94, 200920), (188, 100460), (235, 80368), (376, 50230), (470, 40184), (752, 25115), (940, 20092), (1880, 10046), (3760, 5023)]