8515220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{8689}}^1$

素因数の和:8712

約数の個数: 36

約数和(自身を含む): 20803860

約数和(自身を除く): 12288640

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 8689, 17378, 34756, 43445, 60823, 86890, 121646, 173780, 243292, 304115, 425761, 608230, 851522, 1216460, 1703044, 2128805, 4257610, 8515220]

約数ペア:

[(1, 8515220), (2, 4257610), (4, 2128805), (5, 1703044), (7, 1216460), (10, 851522), (14, 608230), (20, 425761), (28, 304115), (35, 243292), (49, 173780), (70, 121646), (98, 86890), (140, 60823), (196, 43445), (245, 34756), (490, 17378), (980, 8689)]