19895440

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{14629}}^1$

素因数の和:14659

約数の個数: 40

約数和(自身を含む): 48981240

約数和(自身を除く): 29085800

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 14629, 29258, 58516, 73145, 117032, 146290, 234064, 248693, 292580, 497386, 585160, 994772, 1170320, 1243465, 1989544, 2486930, 3979088, 4973860, 9947720, 19895440]

約数ペア:

[(1, 19895440), (2, 9947720), (4, 4973860), (5, 3979088), (8, 2486930), (10, 1989544), (16, 1243465), (17, 1170320), (20, 994772), (34, 585160), (40, 497386), (68, 292580), (80, 248693), (85, 234064), (136, 146290), (170, 117032), (272, 73145), (340, 58516), (680, 29258), (1360, 14629)]