20074875

素因数分解:

$3^1\times 5^3\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1$

素因数の和:149

約数の個数: 64

約数和(自身を含む): 36661248

約数和(自身を除く): 16586373

約数列:

[1, 3, 5, 15, 17, 25, 47, 51, 67, 75, 85, 125, 141, 201, 235, 255, 335, 375, 425, 705, 799, 1005, 1139, 1175, 1275, 1675, 2125, 2397, 3149, 3417, 3525, 3995, 5025, 5695, 5875, 6375, 8375, 9447, 11985, 15745, 17085, 17625, 19975, 25125, 28475, 47235, 53533, 59925, 78725, 85425, 99875, 142375, 160599, 236175, 267665, 299625, 393625, 427125, 802995, 1180875, 1338325, 4014975, 6691625, 20074875]

約数ペア:

[(1, 20074875), (3, 6691625), (5, 4014975), (15, 1338325), (17, 1180875), (25, 802995), (47, 427125), (51, 393625), (67, 299625), (75, 267665), (85, 236175), (125, 160599), (141, 142375), (201, 99875), (235, 85425), (255, 78725), (335, 59925), (375, 53533), (425, 47235), (705, 28475), (799, 25125), (1005, 19975), (1139, 17625), (1175, 17085), (1275, 15745), (1675, 11985), (2125, 9447), (2397, 8375), (3149, 6375), (3417, 5875), (3525, 5695), (3995, 5025)]