681801428

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{509}}^1\times {\mathrm{4349}}^1$

素因数の和:4880

約数の個数: 48

約数和(自身を含む): 1490832000

約数和(自身を除く): 809030572

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 509, 1018, 2036, 3563, 4349, 5599, 7126, 8698, 11198, 14252, 17396, 22396, 30443, 39193, 47839, 60886, 78386, 95678, 121772, 156772, 191356, 334873, 669746, 1339492, 2213641, 4427282, 8854564, 15495487, 24350051, 30990974, 48700102, 61981948, 97400204, 170450357, 340900714, 681801428]

約数ペア:

[(1, 681801428), (2, 340900714), (4, 170450357), (7, 97400204), (11, 61981948), (14, 48700102), (22, 30990974), (28, 24350051), (44, 15495487), (77, 8854564), (154, 4427282), (308, 2213641), (509, 1339492), (1018, 669746), (2036, 334873), (3563, 191356), (4349, 156772), (5599, 121772), (7126, 95678), (8698, 78386), (11198, 60886), (14252, 47839), (17396, 39193), (22396, 30443)]