20274615

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1031}}^1$

素因数の和:1084

約数の個数: 48

約数和(自身を含む): 38638080

約数和(自身を除く): 18363465

約数列:

[1, 3, 5, 9, 15, 19, 23, 45, 57, 69, 95, 115, 171, 207, 285, 345, 437, 855, 1031, 1035, 1311, 2185, 3093, 3933, 5155, 6555, 9279, 15465, 19589, 19665, 23713, 46395, 58767, 71139, 97945, 118565, 176301, 213417, 293835, 355695, 450547, 881505, 1067085, 1351641, 2252735, 4054923, 6758205, 20274615]

約数ペア:

[(1, 20274615), (3, 6758205), (5, 4054923), (9, 2252735), (15, 1351641), (19, 1067085), (23, 881505), (45, 450547), (57, 355695), (69, 293835), (95, 213417), (115, 176301), (171, 118565), (207, 97945), (285, 71139), (345, 58767), (437, 46395), (855, 23713), (1031, 19665), (1035, 19589), (1311, 15465), (2185, 9279), (3093, 6555), (3933, 5155)]