81978750

素因数分解:

$2^1\times 3^3\times 5^4\times 7^1\times {\mathrm{347}}^1$

素因数の和:385

約数の個数: 160

約数和(自身を含む): 260916480

約数和(自身を除く): 178937730

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 27, 30, 35, 42, 45, 50, 54, 63, 70, 75, 90, 105, 125, 126, 135, 150, 175, 189, 210, 225, 250, 270, 315, 347, 350, 375, 378, 450, 525, 625, 630, 675, 694, 750, 875, 945, 1041, 1050, 1125, 1250, 1350, 1575, 1735, 1750, 1875, 1890, 2082, 2250, 2429, 2625, 3123, 3150, 3375, 3470, 3750, 4375, 4725, 4858, 5205, 5250, 5625, 6246, 6750, 7287, 7875, 8675, 8750, 9369, 9450, 10410, 11250, 12145, 13125, 14574, 15615, 15750, 16875, 17350, 18738, 21861, 23625, 24290, 26025, 26250, 31230, 33750, 36435, 39375, 43375, 43722, 46845, 47250, 52050, 60725, 65583, 72870, 78075, 78750, 86750, 93690, 109305, 118125, 121450, 130125, 131166, 156150, 182175, 216875, 218610, 234225, 236250, 260250, 303625, 327915, 364350, 390375, 433750, 468450, 546525, 607250, 650625, 655830, 780750, 910875, 1093050, 1171125, 1301250, 1518125, 1639575, 1821750, 1951875, 2342250, 2732625, 3036250, 3279150, 3903750, 4554375, 5465250, 5855625, 8197875, 9108750, 11711250, 13663125, 16395750, 27326250, 40989375, 81978750]

約数ペア:

[(1, 81978750), (2, 40989375), (3, 27326250), (5, 16395750), (6, 13663125), (7, 11711250), (9, 9108750), (10, 8197875), (14, 5855625), (15, 5465250), (18, 4554375), (21, 3903750), (25, 3279150), (27, 3036250), (30, 2732625), (35, 2342250), (42, 1951875), (45, 1821750), (50, 1639575), (54, 1518125), (63, 1301250), (70, 1171125), (75, 1093050), (90, 910875), (105, 780750), (125, 655830), (126, 650625), (135, 607250), (150, 546525), (175, 468450), (189, 433750), (210, 390375), (225, 364350), (250, 327915), (270, 303625), (315, 260250), (347, 236250), (350, 234225), (375, 218610), (378, 216875), (450, 182175), (525, 156150), (625, 131166), (630, 130125), (675, 121450), (694, 118125), (750, 109305), (875, 93690), (945, 86750), (1041, 78750), (1050, 78075), (1125, 72870), (1250, 65583), (1350, 60725), (1575, 52050), (1735, 47250), (1750, 46845), (1875, 43722), (1890, 43375), (2082, 39375), (2250, 36435), (2429, 33750), (2625, 31230), (3123, 26250), (3150, 26025), (3375, 24290), (3470, 23625), (3750, 21861), (4375, 18738), (4725, 17350), (4858, 16875), (5205, 15750), (5250, 15615), (5625, 14574), (6246, 13125), (6750, 12145), (7287, 11250), (7875, 10410), (8675, 9450), (8750, 9369)]