1398983690

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^3\times {\mathrm{37}}^1\times {\mathrm{1721}}^1$

素因数の和:1804

約数の個数: 64

約数和(自身を含む): 2803278240

約数和(自身を除く): 1404294550

約数列:

[1, 2, 5, 10, 13, 26, 37, 65, 74, 130, 169, 185, 338, 370, 481, 845, 962, 1690, 1721, 2197, 2405, 3442, 4394, 4810, 6253, 8605, 10985, 12506, 17210, 21970, 22373, 31265, 44746, 62530, 63677, 81289, 111865, 127354, 162578, 223730, 290849, 318385, 406445, 581698, 636770, 812890, 827801, 1454245, 1655602, 2908490, 3781037, 4139005, 7562074, 8278010, 10761413, 18905185, 21522826, 37810370, 53807065, 107614130, 139898369, 279796738, 699491845, 1398983690]

約数ペア:

[(1, 1398983690), (2, 699491845), (5, 279796738), (10, 139898369), (13, 107614130), (26, 53807065), (37, 37810370), (65, 21522826), (74, 18905185), (130, 10761413), (169, 8278010), (185, 7562074), (338, 4139005), (370, 3781037), (481, 2908490), (845, 1655602), (962, 1454245), (1690, 827801), (1721, 812890), (2197, 636770), (2405, 581698), (3442, 406445), (4394, 318385), (4810, 290849), (6253, 223730), (8605, 162578), (10985, 127354), (12506, 111865), (17210, 81289), (21970, 63677), (22373, 62530), (31265, 44746)]