28052220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{66791}}^1$

素因数の和:66810

約数の個数: 48

約数和(自身を含む): 89768448

約数和(自身を除く): 61716228

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 66791, 133582, 200373, 267164, 333955, 400746, 467537, 667910, 801492, 935074, 1001865, 1335820, 1402611, 1870148, 2003730, 2337685, 2805222, 4007460, 4675370, 5610444, 7013055, 9350740, 14026110, 28052220]

約数ペア:

[(1, 28052220), (2, 14026110), (3, 9350740), (4, 7013055), (5, 5610444), (6, 4675370), (7, 4007460), (10, 2805222), (12, 2337685), (14, 2003730), (15, 1870148), (20, 1402611), (21, 1335820), (28, 1001865), (30, 935074), (35, 801492), (42, 667910), (60, 467537), (70, 400746), (84, 333955), (105, 267164), (140, 200373), (210, 133582), (420, 66791)]