217876880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{209497}}^1$

素因数の和:209523

約数の個数: 40

約数和(自身を含む): 545532792

約数和(自身を除く): 327655912

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 209497, 418994, 837988, 1047485, 1675976, 2094970, 2723461, 3351952, 4189940, 5446922, 8379880, 10893844, 13617305, 16759760, 21787688, 27234610, 43575376, 54469220, 108938440, 217876880]

約数ペア:

[(1, 217876880), (2, 108938440), (4, 54469220), (5, 43575376), (8, 27234610), (10, 21787688), (13, 16759760), (16, 13617305), (20, 10893844), (26, 8379880), (40, 5446922), (52, 4189940), (65, 3351952), (80, 2723461), (104, 2094970), (130, 1675976), (208, 1047485), (260, 837988), (520, 418994), (1040, 209497)]