19201875

素因数分解:

$3^1\times 5^4\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1$

素因数の和:67

約数の個数: 120

約数和(自身を含む): 42736320

約数和(自身を除く): 23534445

約数列:

[1, 3, 5, 7, 11, 15, 19, 21, 25, 33, 35, 49, 55, 57, 75, 77, 95, 105, 125, 133, 147, 165, 175, 209, 231, 245, 275, 285, 375, 385, 399, 475, 525, 539, 625, 627, 665, 735, 825, 875, 931, 1045, 1155, 1225, 1375, 1425, 1463, 1617, 1875, 1925, 1995, 2375, 2625, 2695, 2793, 3135, 3325, 3675, 4125, 4375, 4389, 4655, 5225, 5775, 6125, 6875, 7125, 7315, 8085, 9625, 9975, 10241, 11875, 13125, 13475, 13965, 15675, 16625, 18375, 20625, 21945, 23275, 26125, 28875, 30625, 30723, 35625, 36575, 40425, 48125, 49875, 51205, 67375, 69825, 78375, 83125, 91875, 109725, 116375, 130625, 144375, 153615, 182875, 202125, 249375, 256025, 336875, 349125, 391875, 548625, 581875, 768075, 914375, 1010625, 1280125, 1745625, 2743125, 3840375, 6400625, 19201875]

約数ペア:

[(1, 19201875), (3, 6400625), (5, 3840375), (7, 2743125), (11, 1745625), (15, 1280125), (19, 1010625), (21, 914375), (25, 768075), (33, 581875), (35, 548625), (49, 391875), (55, 349125), (57, 336875), (75, 256025), (77, 249375), (95, 202125), (105, 182875), (125, 153615), (133, 144375), (147, 130625), (165, 116375), (175, 109725), (209, 91875), (231, 83125), (245, 78375), (275, 69825), (285, 67375), (375, 51205), (385, 49875), (399, 48125), (475, 40425), (525, 36575), (539, 35625), (625, 30723), (627, 30625), (665, 28875), (735, 26125), (825, 23275), (875, 21945), (931, 20625), (1045, 18375), (1155, 16625), (1225, 15675), (1375, 13965), (1425, 13475), (1463, 13125), (1617, 11875), (1875, 10241), (1925, 9975), (1995, 9625), (2375, 8085), (2625, 7315), (2695, 7125), (2793, 6875), (3135, 6125), (3325, 5775), (3675, 5225), (4125, 4655), (4375, 4389)]