80954790

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{991}}^1$

素因数の和:1397

約数の個数: 64

約数和(自身を含む): 222842880

約数和(自身を除く): 141888090

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 389, 778, 991, 1167, 1945, 1982, 2334, 2723, 2973, 3890, 4955, 5446, 5835, 5946, 6937, 8169, 9910, 11670, 13615, 13874, 14865, 16338, 20811, 27230, 29730, 34685, 40845, 41622, 69370, 81690, 104055, 208110, 385499, 770998, 1156497, 1927495, 2312994, 2698493, 3854990, 5396986, 5782485, 8095479, 11564970, 13492465, 16190958, 26984930, 40477395, 80954790]

約数ペア:

[(1, 80954790), (2, 40477395), (3, 26984930), (5, 16190958), (6, 13492465), (7, 11564970), (10, 8095479), (14, 5782485), (15, 5396986), (21, 3854990), (30, 2698493), (35, 2312994), (42, 1927495), (70, 1156497), (105, 770998), (210, 385499), (389, 208110), (778, 104055), (991, 81690), (1167, 69370), (1945, 41622), (1982, 40845), (2334, 34685), (2723, 29730), (2973, 27230), (3890, 20811), (4955, 16338), (5446, 14865), (5835, 13874), (5946, 13615), (6937, 11670), (8169, 9910)]