1899975

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1$

素因数の和:85

約数の個数: 72

約数和(自身を含む): 4071168

約数和(自身を除く): 2171193

約数列:

[1, 3, 5, 7, 11, 15, 21, 25, 33, 35, 47, 49, 55, 75, 77, 105, 141, 147, 165, 175, 231, 235, 245, 275, 329, 385, 517, 525, 539, 705, 735, 825, 987, 1155, 1175, 1225, 1551, 1617, 1645, 1925, 2303, 2585, 2695, 3525, 3619, 3675, 4935, 5775, 6909, 7755, 8085, 8225, 10857, 11515, 12925, 13475, 18095, 24675, 25333, 34545, 38775, 40425, 54285, 57575, 75999, 90475, 126665, 172725, 271425, 379995, 633325, 1899975]

約数ペア:

[(1, 1899975), (3, 633325), (5, 379995), (7, 271425), (11, 172725), (15, 126665), (21, 90475), (25, 75999), (33, 57575), (35, 54285), (47, 40425), (49, 38775), (55, 34545), (75, 25333), (77, 24675), (105, 18095), (141, 13475), (147, 12925), (165, 11515), (175, 10857), (231, 8225), (235, 8085), (245, 7755), (275, 6909), (329, 5775), (385, 4935), (517, 3675), (525, 3619), (539, 3525), (705, 2695), (735, 2585), (825, 2303), (987, 1925), (1155, 1645), (1175, 1617), (1225, 1551)]