1780147125

素因数分解:

$3^4\times 5^3\times {\mathrm{109}}^1\times {\mathrm{1613}}^1$

素因数の和:1749

約数の個数: 80

約数和(自身を含む): 3351245040

約数和(自身を除く): 1571097915

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 109, 125, 135, 225, 327, 375, 405, 545, 675, 981, 1125, 1613, 1635, 2025, 2725, 2943, 3375, 4839, 4905, 8065, 8175, 8829, 10125, 13625, 14517, 14715, 24195, 24525, 40325, 40875, 43551, 44145, 72585, 73575, 120975, 122625, 130653, 175817, 201625, 217755, 220725, 362925, 367875, 527451, 604875, 653265, 879085, 1088775, 1103625, 1582353, 1814625, 2637255, 3266325, 4395425, 4747059, 5443875, 7911765, 13186275, 14241177, 16331625, 21977125, 23735295, 39558825, 65931375, 71205885, 118676475, 197794125, 356029425, 593382375, 1780147125]

約数ペア:

[(1, 1780147125), (3, 593382375), (5, 356029425), (9, 197794125), (15, 118676475), (25, 71205885), (27, 65931375), (45, 39558825), (75, 23735295), (81, 21977125), (109, 16331625), (125, 14241177), (135, 13186275), (225, 7911765), (327, 5443875), (375, 4747059), (405, 4395425), (545, 3266325), (675, 2637255), (981, 1814625), (1125, 1582353), (1613, 1103625), (1635, 1088775), (2025, 879085), (2725, 653265), (2943, 604875), (3375, 527451), (4839, 367875), (4905, 362925), (8065, 220725), (8175, 217755), (8829, 201625), (10125, 175817), (13625, 130653), (14517, 122625), (14715, 120975), (24195, 73575), (24525, 72585), (40325, 44145), (40875, 43551)]