81440205

素因数分解:

$3^1\times 5^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{1439}}^1$

素因数の和:1479

約数の個数: 64

約数和(自身を含む): 165888000

約数和(自身を除く): 84447795

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 49, 55, 77, 105, 147, 165, 231, 245, 343, 385, 539, 735, 1029, 1155, 1439, 1617, 1715, 2695, 3773, 4317, 5145, 7195, 8085, 10073, 11319, 15829, 18865, 21585, 30219, 47487, 50365, 56595, 70511, 79145, 110803, 151095, 211533, 237435, 332409, 352555, 493577, 554015, 775621, 1057665, 1480731, 1662045, 2326863, 2467885, 3878105, 5429347, 7403655, 11634315, 16288041, 27146735, 81440205]

約数ペア:

[(1, 81440205), (3, 27146735), (5, 16288041), (7, 11634315), (11, 7403655), (15, 5429347), (21, 3878105), (33, 2467885), (35, 2326863), (49, 1662045), (55, 1480731), (77, 1057665), (105, 775621), (147, 554015), (165, 493577), (231, 352555), (245, 332409), (343, 237435), (385, 211533), (539, 151095), (735, 110803), (1029, 79145), (1155, 70511), (1439, 56595), (1617, 50365), (1715, 47487), (2695, 30219), (3773, 21585), (4317, 18865), (5145, 15829), (7195, 11319), (8085, 10073)]