18730660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1181}}^1$

素因数の和:1264

約数の個数: 48

約数和(自身を含む): 43090992

約数和(自身を除く): 24360332

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 61, 65, 122, 130, 244, 260, 305, 610, 793, 1181, 1220, 1586, 2362, 3172, 3965, 4724, 5905, 7930, 11810, 15353, 15860, 23620, 30706, 61412, 72041, 76765, 144082, 153530, 288164, 307060, 360205, 720410, 936533, 1440820, 1873066, 3746132, 4682665, 9365330, 18730660]

約数ペア:

[(1, 18730660), (2, 9365330), (4, 4682665), (5, 3746132), (10, 1873066), (13, 1440820), (20, 936533), (26, 720410), (52, 360205), (61, 307060), (65, 288164), (122, 153530), (130, 144082), (244, 76765), (260, 72041), (305, 61412), (610, 30706), (793, 23620), (1181, 15860), (1220, 15353), (1586, 11810), (2362, 7930), (3172, 5905), (3965, 4724)]