820995280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{86239}}^1$

素因数の和:86276

約数の個数: 80

約数和(自身を含む): 2309852160

約数和(自身を除く): 1488856880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 34, 35, 40, 56, 68, 70, 80, 85, 112, 119, 136, 140, 170, 238, 272, 280, 340, 476, 560, 595, 680, 952, 1190, 1360, 1904, 2380, 4760, 9520, 86239, 172478, 344956, 431195, 603673, 689912, 862390, 1207346, 1379824, 1466063, 1724780, 2414692, 2932126, 3018365, 3449560, 4829384, 5864252, 6036730, 6899120, 7330315, 9658768, 10262441, 11728504, 12073460, 14660630, 20524882, 23457008, 24146920, 29321260, 41049764, 48293840, 51312205, 58642520, 82099528, 102624410, 117285040, 164199056, 205248820, 410497640, 820995280]

約数ペア:

[(1, 820995280), (2, 410497640), (4, 205248820), (5, 164199056), (7, 117285040), (8, 102624410), (10, 82099528), (14, 58642520), (16, 51312205), (17, 48293840), (20, 41049764), (28, 29321260), (34, 24146920), (35, 23457008), (40, 20524882), (56, 14660630), (68, 12073460), (70, 11728504), (80, 10262441), (85, 9658768), (112, 7330315), (119, 6899120), (136, 6036730), (140, 5864252), (170, 4829384), (238, 3449560), (272, 3018365), (280, 2932126), (340, 2414692), (476, 1724780), (560, 1466063), (595, 1379824), (680, 1207346), (952, 862390), (1190, 689912), (1360, 603673), (1904, 431195), (2380, 344956), (4760, 172478), (9520, 86239)]