79916140

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{821}}^1$

素因数の和:1018

約数の個数: 48

約数和(自身を含む): 174553344

約数和(自身を除く): 94637204

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 157, 310, 314, 620, 628, 785, 821, 1570, 1642, 3140, 3284, 4105, 4867, 8210, 9734, 16420, 19468, 24335, 25451, 48670, 50902, 97340, 101804, 127255, 128897, 254510, 257794, 509020, 515588, 644485, 1288970, 2577940, 3995807, 7991614, 15983228, 19979035, 39958070, 79916140]

約数ペア:

[(1, 79916140), (2, 39958070), (4, 19979035), (5, 15983228), (10, 7991614), (20, 3995807), (31, 2577940), (62, 1288970), (124, 644485), (155, 515588), (157, 509020), (310, 257794), (314, 254510), (620, 128897), (628, 127255), (785, 101804), (821, 97340), (1570, 50902), (1642, 48670), (3140, 25451), (3284, 24335), (4105, 19468), (4867, 16420), (8210, 9734)]