223550920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{1297}}^1$

素因数の和:1478

約数の個数: 64

約数和(自身を含む): 523353600

約数和(自身を除く): 299802680

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 139, 155, 248, 278, 310, 556, 620, 695, 1112, 1240, 1297, 1390, 2594, 2780, 4309, 5188, 5560, 6485, 8618, 10376, 12970, 17236, 21545, 25940, 34472, 40207, 43090, 51880, 80414, 86180, 160828, 172360, 180283, 201035, 321656, 360566, 402070, 721132, 804140, 901415, 1442264, 1608280, 1802830, 3605660, 5588773, 7211320, 11177546, 22355092, 27943865, 44710184, 55887730, 111775460, 223550920]

約数ペア:

[(1, 223550920), (2, 111775460), (4, 55887730), (5, 44710184), (8, 27943865), (10, 22355092), (20, 11177546), (31, 7211320), (40, 5588773), (62, 3605660), (124, 1802830), (139, 1608280), (155, 1442264), (248, 901415), (278, 804140), (310, 721132), (556, 402070), (620, 360566), (695, 321656), (1112, 201035), (1240, 180283), (1297, 172360), (1390, 160828), (2594, 86180), (2780, 80414), (4309, 51880), (5188, 43090), (5560, 40207), (6485, 34472), (8618, 25940), (10376, 21545), (12970, 17236)]