18743620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{5821}}^1$

素因数の和:5860

約数の個数: 48

約数和(自身を含む): 46948608

約数和(自身を除く): 28204988

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 5821, 11642, 23284, 29105, 40747, 58210, 81494, 116420, 133883, 162988, 203735, 267766, 407470, 535532, 669415, 814940, 937181, 1338830, 1874362, 2677660, 3748724, 4685905, 9371810, 18743620]

約数ペア:

[(1, 18743620), (2, 9371810), (4, 4685905), (5, 3748724), (7, 2677660), (10, 1874362), (14, 1338830), (20, 937181), (23, 814940), (28, 669415), (35, 535532), (46, 407470), (70, 267766), (92, 203735), (115, 162988), (140, 133883), (161, 116420), (230, 81494), (322, 58210), (460, 40747), (644, 29105), (805, 23284), (1610, 11642), (3220, 5821)]