216197840

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{2239}}^1$

素因数の和:2340

約数の個数: 80

約数和(自身を含む): 539965440

約数和(自身を除く): 323767600

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 71, 80, 85, 136, 142, 170, 272, 284, 340, 355, 568, 680, 710, 1136, 1207, 1360, 1420, 2239, 2414, 2840, 4478, 4828, 5680, 6035, 8956, 9656, 11195, 12070, 17912, 19312, 22390, 24140, 35824, 38063, 44780, 48280, 76126, 89560, 96560, 152252, 158969, 179120, 190315, 304504, 317938, 380630, 609008, 635876, 761260, 794845, 1271752, 1522520, 1589690, 2543504, 2702473, 3045040, 3179380, 5404946, 6358760, 10809892, 12717520, 13512365, 21619784, 27024730, 43239568, 54049460, 108098920, 216197840]

約数ペア:

[(1, 216197840), (2, 108098920), (4, 54049460), (5, 43239568), (8, 27024730), (10, 21619784), (16, 13512365), (17, 12717520), (20, 10809892), (34, 6358760), (40, 5404946), (68, 3179380), (71, 3045040), (80, 2702473), (85, 2543504), (136, 1589690), (142, 1522520), (170, 1271752), (272, 794845), (284, 761260), (340, 635876), (355, 609008), (568, 380630), (680, 317938), (710, 304504), (1136, 190315), (1207, 179120), (1360, 158969), (1420, 152252), (2239, 96560), (2414, 89560), (2840, 76126), (4478, 48280), (4828, 44780), (5680, 38063), (6035, 35824), (8956, 24140), (9656, 22390), (11195, 19312), (12070, 17912)]