81257760

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{773}}^1$

素因数の和:867

約数の個数: 144

約数和(自身を含む): 281454264

約数和(自身を除く): 200196504

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 73, 80, 90, 96, 120, 144, 146, 160, 180, 219, 240, 288, 292, 360, 365, 438, 480, 584, 657, 720, 730, 773, 876, 1095, 1168, 1314, 1440, 1460, 1546, 1752, 2190, 2319, 2336, 2628, 2920, 3092, 3285, 3504, 3865, 4380, 4638, 5256, 5840, 6184, 6570, 6957, 7008, 7730, 8760, 9276, 10512, 11595, 11680, 12368, 13140, 13914, 15460, 17520, 18552, 21024, 23190, 24736, 26280, 27828, 30920, 34785, 35040, 37104, 46380, 52560, 55656, 56429, 61840, 69570, 74208, 92760, 105120, 111312, 112858, 123680, 139140, 169287, 185520, 222624, 225716, 278280, 282145, 338574, 371040, 451432, 507861, 556560, 564290, 677148, 846435, 902864, 1015722, 1113120, 1128580, 1354296, 1692870, 1805728, 2031444, 2257160, 2539305, 2708592, 3385740, 4062888, 4514320, 5078610, 5417184, 6771480, 8125776, 9028640, 10157220, 13542960, 16251552, 20314440, 27085920, 40628880, 81257760]

約数ペア:

[(1, 81257760), (2, 40628880), (3, 27085920), (4, 20314440), (5, 16251552), (6, 13542960), (8, 10157220), (9, 9028640), (10, 8125776), (12, 6771480), (15, 5417184), (16, 5078610), (18, 4514320), (20, 4062888), (24, 3385740), (30, 2708592), (32, 2539305), (36, 2257160), (40, 2031444), (45, 1805728), (48, 1692870), (60, 1354296), (72, 1128580), (73, 1113120), (80, 1015722), (90, 902864), (96, 846435), (120, 677148), (144, 564290), (146, 556560), (160, 507861), (180, 451432), (219, 371040), (240, 338574), (288, 282145), (292, 278280), (360, 225716), (365, 222624), (438, 185520), (480, 169287), (584, 139140), (657, 123680), (720, 112858), (730, 111312), (773, 105120), (876, 92760), (1095, 74208), (1168, 69570), (1314, 61840), (1440, 56429), (1460, 55656), (1546, 52560), (1752, 46380), (2190, 37104), (2319, 35040), (2336, 34785), (2628, 30920), (2920, 27828), (3092, 26280), (3285, 24736), (3504, 23190), (3865, 21024), (4380, 18552), (4638, 17520), (5256, 15460), (5840, 13914), (6184, 13140), (6570, 12368), (6957, 11680), (7008, 11595), (7730, 10512), (8760, 9276)]