81551250

素因数分解:

$2^1\times 3^2\times 5^4\times {\mathrm{11}}^1\times {\mathrm{659}}^1$

素因数の和:698

約数の個数: 120

約数和(自身を含む): 241235280

約数和(自身を除く): 159684030

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 25, 30, 33, 45, 50, 55, 66, 75, 90, 99, 110, 125, 150, 165, 198, 225, 250, 275, 330, 375, 450, 495, 550, 625, 659, 750, 825, 990, 1125, 1250, 1318, 1375, 1650, 1875, 1977, 2250, 2475, 2750, 3295, 3750, 3954, 4125, 4950, 5625, 5931, 6590, 6875, 7249, 8250, 9885, 11250, 11862, 12375, 13750, 14498, 16475, 19770, 20625, 21747, 24750, 29655, 32950, 36245, 41250, 43494, 49425, 59310, 61875, 65241, 72490, 82375, 98850, 108735, 123750, 130482, 148275, 164750, 181225, 217470, 247125, 296550, 326205, 362450, 411875, 494250, 543675, 652410, 741375, 823750, 906125, 1087350, 1235625, 1482750, 1631025, 1812250, 2471250, 2718375, 3262050, 3706875, 4530625, 5436750, 7413750, 8155125, 9061250, 13591875, 16310250, 27183750, 40775625, 81551250]

約数ペア:

[(1, 81551250), (2, 40775625), (3, 27183750), (5, 16310250), (6, 13591875), (9, 9061250), (10, 8155125), (11, 7413750), (15, 5436750), (18, 4530625), (22, 3706875), (25, 3262050), (30, 2718375), (33, 2471250), (45, 1812250), (50, 1631025), (55, 1482750), (66, 1235625), (75, 1087350), (90, 906125), (99, 823750), (110, 741375), (125, 652410), (150, 543675), (165, 494250), (198, 411875), (225, 362450), (250, 326205), (275, 296550), (330, 247125), (375, 217470), (450, 181225), (495, 164750), (550, 148275), (625, 130482), (659, 123750), (750, 108735), (825, 98850), (990, 82375), (1125, 72490), (1250, 65241), (1318, 61875), (1375, 59310), (1650, 49425), (1875, 43494), (1977, 41250), (2250, 36245), (2475, 32950), (2750, 29655), (3295, 24750), (3750, 21747), (3954, 20625), (4125, 19770), (4950, 16475), (5625, 14498), (5931, 13750), (6590, 12375), (6875, 11862), (7249, 11250), (8250, 9885)]