634060

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{647}}^1$

素因数の和:670

約数の個数: 36

約数和(自身を含む): 1551312

約数和(自身を除く): 917252

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 647, 980, 1294, 2588, 3235, 4529, 6470, 9058, 12940, 18116, 22645, 31703, 45290, 63406, 90580, 126812, 158515, 317030, 634060]

約数ペア:

[(1, 634060), (2, 317030), (4, 158515), (5, 126812), (7, 90580), (10, 63406), (14, 45290), (20, 31703), (28, 22645), (35, 18116), (49, 12940), (70, 9058), (98, 6470), (140, 4529), (196, 3235), (245, 2588), (490, 1294), (647, 980)]