13222020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{31481}}^1$

素因数の和:31500

約数の個数: 48

約数和(自身を含む): 42311808

約数和(自身を除く): 29089788

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 31481, 62962, 94443, 125924, 157405, 188886, 220367, 314810, 377772, 440734, 472215, 629620, 661101, 881468, 944430, 1101835, 1322202, 1888860, 2203670, 2644404, 3305505, 4407340, 6611010, 13222020]

約数ペア:

[(1, 13222020), (2, 6611010), (3, 4407340), (4, 3305505), (5, 2644404), (6, 2203670), (7, 1888860), (10, 1322202), (12, 1101835), (14, 944430), (15, 881468), (20, 661101), (21, 629620), (28, 472215), (30, 440734), (35, 377772), (42, 314810), (60, 220367), (70, 188886), (84, 157405), (105, 125924), (140, 94443), (210, 62962), (420, 31481)]