81497340

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{41}}^1\times {\mathrm{409}}^1$

素因数の和:474

約数の個数: 144

約数和(自身を含む): 263259360

約数和(自身を除く): 181762020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 41, 45, 54, 60, 81, 82, 90, 108, 123, 135, 162, 164, 180, 205, 243, 246, 270, 324, 369, 405, 409, 410, 486, 492, 540, 615, 738, 810, 818, 820, 972, 1107, 1215, 1227, 1230, 1476, 1620, 1636, 1845, 2045, 2214, 2430, 2454, 2460, 3321, 3681, 3690, 4090, 4428, 4860, 4908, 5535, 6135, 6642, 7362, 7380, 8180, 9963, 11043, 11070, 12270, 13284, 14724, 16605, 16769, 18405, 19926, 22086, 22140, 24540, 33129, 33210, 33538, 36810, 39852, 44172, 49815, 50307, 55215, 66258, 66420, 67076, 73620, 83845, 99387, 99630, 100614, 110430, 132516, 150921, 165645, 167690, 198774, 199260, 201228, 220860, 251535, 301842, 331290, 335380, 397548, 452763, 496935, 503070, 603684, 662580, 754605, 905526, 993870, 1006140, 1358289, 1509210, 1811052, 1987740, 2263815, 2716578, 3018420, 4074867, 4527630, 5433156, 6791445, 8149734, 9055260, 13582890, 16299468, 20374335, 27165780, 40748670, 81497340]

約数ペア:

[(1, 81497340), (2, 40748670), (3, 27165780), (4, 20374335), (5, 16299468), (6, 13582890), (9, 9055260), (10, 8149734), (12, 6791445), (15, 5433156), (18, 4527630), (20, 4074867), (27, 3018420), (30, 2716578), (36, 2263815), (41, 1987740), (45, 1811052), (54, 1509210), (60, 1358289), (81, 1006140), (82, 993870), (90, 905526), (108, 754605), (123, 662580), (135, 603684), (162, 503070), (164, 496935), (180, 452763), (205, 397548), (243, 335380), (246, 331290), (270, 301842), (324, 251535), (369, 220860), (405, 201228), (409, 199260), (410, 198774), (486, 167690), (492, 165645), (540, 150921), (615, 132516), (738, 110430), (810, 100614), (818, 99630), (820, 99387), (972, 83845), (1107, 73620), (1215, 67076), (1227, 66420), (1230, 66258), (1476, 55215), (1620, 50307), (1636, 49815), (1845, 44172), (2045, 39852), (2214, 36810), (2430, 33538), (2454, 33210), (2460, 33129), (3321, 24540), (3681, 22140), (3690, 22086), (4090, 19926), (4428, 18405), (4860, 16769), (4908, 16605), (5535, 14724), (6135, 13284), (6642, 12270), (7362, 11070), (7380, 11043), (8180, 9963)]