284492740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{28621}}^1$

素因数の和:28708

約数の個数: 48

約数和(自身を含む): 692423424

約数和(自身を除く): 407930684

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4970, 9940, 28621, 57242, 114484, 143105, 200347, 286210, 400694, 572420, 801388, 1001735, 2003470, 2032091, 4006940, 4064182, 8128364, 10160455, 14224637, 20320910, 28449274, 40641820, 56898548, 71123185, 142246370, 284492740]

約数ペア:

[(1, 284492740), (2, 142246370), (4, 71123185), (5, 56898548), (7, 40641820), (10, 28449274), (14, 20320910), (20, 14224637), (28, 10160455), (35, 8128364), (70, 4064182), (71, 4006940), (140, 2032091), (142, 2003470), (284, 1001735), (355, 801388), (497, 572420), (710, 400694), (994, 286210), (1420, 200347), (1988, 143105), (2485, 114484), (4970, 57242), (9940, 28621)]