20118410

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:183

約数の個数: 64

約数和(自身を含む): 41247360

約数和(自身を除く): 21128950

約数列:

[1, 2, 5, 10, 13, 26, 43, 59, 61, 65, 86, 118, 122, 130, 215, 295, 305, 430, 559, 590, 610, 767, 793, 1118, 1534, 1586, 2537, 2623, 2795, 3599, 3835, 3965, 5074, 5246, 5590, 7198, 7670, 7930, 12685, 13115, 17995, 25370, 26230, 32981, 34099, 35990, 46787, 65962, 68198, 93574, 154757, 164905, 170495, 233935, 309514, 329810, 340990, 467870, 773785, 1547570, 2011841, 4023682, 10059205, 20118410]

約数ペア:

[(1, 20118410), (2, 10059205), (5, 4023682), (10, 2011841), (13, 1547570), (26, 773785), (43, 467870), (59, 340990), (61, 329810), (65, 309514), (86, 233935), (118, 170495), (122, 164905), (130, 154757), (215, 93574), (295, 68198), (305, 65962), (430, 46787), (559, 35990), (590, 34099), (610, 32981), (767, 26230), (793, 25370), (1118, 17995), (1534, 13115), (1586, 12685), (2537, 7930), (2623, 7670), (2795, 7198), (3599, 5590), (3835, 5246), (3965, 5074)]