13238920

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19469}}^1$

素因数の和:19497

約数の個数: 32

約数和(自身を含む): 31541400

約数和(自身を除く): 18302480

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 19469, 38938, 77876, 97345, 155752, 194690, 330973, 389380, 661946, 778760, 1323892, 1654865, 2647784, 3309730, 6619460, 13238920]

約数ペア:

[(1, 13238920), (2, 6619460), (4, 3309730), (5, 2647784), (8, 1654865), (10, 1323892), (17, 778760), (20, 661946), (34, 389380), (40, 330973), (68, 194690), (85, 155752), (136, 97345), (170, 77876), (340, 38938), (680, 19469)]