18471505

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1$

素因数の和:241

約数の個数: 32

約数和(自身を含む): 25159680

約数和(自身を除く): 6688175

約数列:

[1, 5, 13, 31, 65, 89, 103, 155, 403, 445, 515, 1157, 1339, 2015, 2759, 3193, 5785, 6695, 9167, 13795, 15965, 35867, 41509, 45835, 119171, 179335, 207545, 284177, 595855, 1420885, 3694301, 18471505]

約数ペア:

[(1, 18471505), (5, 3694301), (13, 1420885), (31, 595855), (65, 284177), (89, 207545), (103, 179335), (155, 119171), (403, 45835), (445, 41509), (515, 35867), (1157, 15965), (1339, 13795), (2015, 9167), (2759, 6695), (3193, 5785)]