19890010

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{1907}}^1$

素因数の和:2070

約数の個数: 32

約数和(自身を含む): 41212800

約数和(自身を除く): 21322790

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 149, 298, 745, 1043, 1490, 1907, 2086, 3814, 5215, 9535, 10430, 13349, 19070, 26698, 66745, 133490, 284143, 568286, 1420715, 1989001, 2841430, 3978002, 9945005, 19890010]

約数ペア:

[(1, 19890010), (2, 9945005), (5, 3978002), (7, 2841430), (10, 1989001), (14, 1420715), (35, 568286), (70, 284143), (149, 133490), (298, 66745), (745, 26698), (1043, 19070), (1490, 13349), (1907, 10430), (2086, 9535), (3814, 5215)]