20634225

素因数分解:

$3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{179}}^1$

素因数の和:274

約数の個数: 48

約数和(自身を含む): 36158400

約数和(自身を除く): 15524175

約数列:

[1, 3, 5, 15, 25, 29, 53, 75, 87, 145, 159, 179, 265, 435, 537, 725, 795, 895, 1325, 1537, 2175, 2685, 3975, 4475, 4611, 5191, 7685, 9487, 13425, 15573, 23055, 25955, 28461, 38425, 47435, 77865, 115275, 129775, 142305, 237175, 275123, 389325, 711525, 825369, 1375615, 4126845, 6878075, 20634225]

約数ペア:

[(1, 20634225), (3, 6878075), (5, 4126845), (15, 1375615), (25, 825369), (29, 711525), (53, 389325), (75, 275123), (87, 237175), (145, 142305), (159, 129775), (179, 115275), (265, 77865), (435, 47435), (537, 38425), (725, 28461), (795, 25955), (895, 23055), (1325, 15573), (1537, 13425), (2175, 9487), (2685, 7685), (3975, 5191), (4475, 4611)]