216840560

素因数分解:

$2^4\times 5^1\times {\mathrm{709}}^1\times {\mathrm{3823}}^1$

素因数の和:4545

約数の個数: 40

約数和(自身を含む): 504997440

約数和(自身を除く): 288156880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 709, 1418, 2836, 3545, 3823, 5672, 7090, 7646, 11344, 14180, 15292, 19115, 28360, 30584, 38230, 56720, 61168, 76460, 152920, 305840, 2710507, 5421014, 10842028, 13552535, 21684056, 27105070, 43368112, 54210140, 108420280, 216840560]

約数ペア:

[(1, 216840560), (2, 108420280), (4, 54210140), (5, 43368112), (8, 27105070), (10, 21684056), (16, 13552535), (20, 10842028), (40, 5421014), (80, 2710507), (709, 305840), (1418, 152920), (2836, 76460), (3545, 61168), (3823, 56720), (5672, 38230), (7090, 30584), (7646, 28360), (11344, 19115), (14180, 15292)]