239980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{71}}^1$

素因数の和:106

約数の個数: 36

約数和(自身を含む): 553392

約数和(自身を除く): 313412

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 71, 130, 142, 169, 260, 284, 338, 355, 676, 710, 845, 923, 1420, 1690, 1846, 3380, 3692, 4615, 9230, 11999, 18460, 23998, 47996, 59995, 119990, 239980]

約数ペア:

[(1, 239980), (2, 119990), (4, 59995), (5, 47996), (10, 23998), (13, 18460), (20, 11999), (26, 9230), (52, 4615), (65, 3692), (71, 3380), (130, 1846), (142, 1690), (169, 1420), (260, 923), (284, 845), (338, 710), (355, 676)]