81706450

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1$

素因数の和:212

約数の個数: 96

約数和(自身を含む): 182666880

約数和(自身を除く): 100960430

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 43, 50, 61, 70, 86, 89, 122, 175, 178, 215, 301, 305, 350, 427, 430, 445, 602, 610, 623, 854, 890, 1075, 1246, 1505, 1525, 2135, 2150, 2225, 2623, 3010, 3050, 3115, 3827, 4270, 4450, 5246, 5429, 6230, 7525, 7654, 10675, 10858, 13115, 15050, 15575, 18361, 19135, 21350, 26230, 26789, 27145, 31150, 36722, 38003, 38270, 53578, 54290, 65575, 76006, 91805, 95675, 131150, 133945, 135725, 183610, 190015, 191350, 233447, 267890, 271450, 380030, 459025, 466894, 669725, 918050, 950075, 1167235, 1339450, 1634129, 1900150, 2334470, 3268258, 5836175, 8170645, 11672350, 16341290, 40853225, 81706450]

約数ペア:

[(1, 81706450), (2, 40853225), (5, 16341290), (7, 11672350), (10, 8170645), (14, 5836175), (25, 3268258), (35, 2334470), (43, 1900150), (50, 1634129), (61, 1339450), (70, 1167235), (86, 950075), (89, 918050), (122, 669725), (175, 466894), (178, 459025), (215, 380030), (301, 271450), (305, 267890), (350, 233447), (427, 191350), (430, 190015), (445, 183610), (602, 135725), (610, 133945), (623, 131150), (854, 95675), (890, 91805), (1075, 76006), (1246, 65575), (1505, 54290), (1525, 53578), (2135, 38270), (2150, 38003), (2225, 36722), (2623, 31150), (3010, 27145), (3050, 26789), (3115, 26230), (3827, 21350), (4270, 19135), (4450, 18361), (5246, 15575), (5429, 15050), (6230, 13115), (7525, 10858), (7654, 10675)]