25568205

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{103}}^1$

素因数の和:210

約数の個数: 64

約数和(自身を含む): 47523840

約数和(自身を除く): 21955635

約数列:

[1, 3, 5, 13, 15, 19, 39, 57, 65, 67, 95, 103, 195, 201, 247, 285, 309, 335, 515, 741, 871, 1005, 1235, 1273, 1339, 1545, 1957, 2613, 3705, 3819, 4017, 4355, 5871, 6365, 6695, 6901, 9785, 13065, 16549, 19095, 20085, 20703, 25441, 29355, 34505, 49647, 76323, 82745, 89713, 103515, 127205, 131119, 248235, 269139, 381615, 393357, 448565, 655595, 1345695, 1704547, 1966785, 5113641, 8522735, 25568205]

約数ペア:

[(1, 25568205), (3, 8522735), (5, 5113641), (13, 1966785), (15, 1704547), (19, 1345695), (39, 655595), (57, 448565), (65, 393357), (67, 381615), (95, 269139), (103, 248235), (195, 131119), (201, 127205), (247, 103515), (285, 89713), (309, 82745), (335, 76323), (515, 49647), (741, 34505), (871, 29355), (1005, 25441), (1235, 20703), (1273, 20085), (1339, 19095), (1545, 16549), (1957, 13065), (2613, 9785), (3705, 6901), (3819, 6695), (4017, 6365), (4355, 5871)]