261006340

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{266333}}^1$

素因数の和:266356

約数の個数: 36

約数和(自身を含む): 637603596

約数和(自身を除く): 376597256

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 266333, 532666, 1065332, 1331665, 1864331, 2663330, 3728662, 5326660, 7457324, 9321655, 13050317, 18643310, 26100634, 37286620, 52201268, 65251585, 130503170, 261006340]

約数ペア:

[(1, 261006340), (2, 130503170), (4, 65251585), (5, 52201268), (7, 37286620), (10, 26100634), (14, 18643310), (20, 13050317), (28, 9321655), (35, 7457324), (49, 5326660), (70, 3728662), (98, 2663330), (140, 1864331), (196, 1331665), (245, 1065332), (490, 532666), (980, 266333)]