1998815

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{191}}^1$

素因数の和:239

約数の個数: 32

約数和(自身を含む): 3096576

約数和(自身を除く): 1097761

約数列:

[1, 5, 7, 13, 23, 35, 65, 91, 115, 161, 191, 299, 455, 805, 955, 1337, 1495, 2093, 2483, 4393, 6685, 10465, 12415, 17381, 21965, 30751, 57109, 86905, 153755, 285545, 399763, 1998815]

約数ペア:

[(1, 1998815), (5, 399763), (7, 285545), (13, 153755), (23, 86905), (35, 57109), (65, 30751), (91, 21965), (115, 17381), (161, 12415), (191, 10465), (299, 6685), (455, 4393), (805, 2483), (955, 2093), (1337, 1495)]