381914575

素因数分解:

$5^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{113}}^1$

素因数の和:257

約数の個数: 72

約数和(自身を含む): 580141440

約数和(自身を除く): 198226865

約数列:

[1, 5, 7, 25, 31, 35, 49, 89, 113, 155, 175, 217, 245, 445, 565, 623, 775, 791, 1085, 1225, 1519, 2225, 2759, 2825, 3115, 3503, 3955, 4361, 5425, 5537, 7595, 10057, 13795, 15575, 17515, 19313, 19775, 21805, 24521, 27685, 37975, 50285, 68975, 70399, 87575, 96565, 109025, 122605, 135191, 138425, 171647, 251425, 311767, 351995, 482825, 492793, 613025, 675955, 858235, 1558835, 1759975, 2182369, 2463965, 3379775, 4291175, 7794175, 10911845, 12319825, 15276583, 54559225, 76382915, 381914575]

約数ペア:

[(1, 381914575), (5, 76382915), (7, 54559225), (25, 15276583), (31, 12319825), (35, 10911845), (49, 7794175), (89, 4291175), (113, 3379775), (155, 2463965), (175, 2182369), (217, 1759975), (245, 1558835), (445, 858235), (565, 675955), (623, 613025), (775, 492793), (791, 482825), (1085, 351995), (1225, 311767), (1519, 251425), (2225, 171647), (2759, 138425), (2825, 135191), (3115, 122605), (3503, 109025), (3955, 96565), (4361, 87575), (5425, 70399), (5537, 68975), (7595, 50285), (10057, 37975), (13795, 27685), (15575, 24521), (17515, 21805), (19313, 19775)]