691561948

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1$

素因数の和:224

約数の個数: 144

約数和(自身を含む): 1604477952

約数和(自身を除く): 912916004

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 43, 44, 47, 77, 86, 94, 101, 121, 154, 172, 188, 202, 242, 301, 308, 329, 404, 473, 484, 517, 602, 658, 707, 847, 946, 1034, 1111, 1204, 1316, 1414, 1694, 1892, 2021, 2068, 2222, 2828, 3311, 3388, 3619, 4042, 4343, 4444, 4747, 5203, 5687, 6622, 7238, 7777, 8084, 8686, 9494, 10406, 11374, 12221, 13244, 14147, 14476, 15554, 17372, 18988, 20812, 22231, 22748, 24442, 28294, 30401, 31108, 33229, 36421, 39809, 44462, 47773, 48884, 52217, 56588, 60802, 66458, 72842, 79618, 85547, 88924, 95546, 104434, 121604, 132916, 145684, 155617, 159236, 171094, 191092, 204121, 208868, 244541, 311234, 334411, 342188, 365519, 408242, 489082, 525503, 574387, 622468, 668822, 731038, 816484, 978164, 1051006, 1148774, 1337644, 1428847, 1462076, 1711787, 2102012, 2245331, 2297548, 2857694, 3423574, 3678521, 4020709, 4490662, 5715388, 6847148, 7357042, 8041418, 8981324, 14714084, 15717317, 16082836, 24698641, 31434634, 49397282, 62869268, 98794564, 172890487, 345780974, 691561948]

約数ペア:

[(1, 691561948), (2, 345780974), (4, 172890487), (7, 98794564), (11, 62869268), (14, 49397282), (22, 31434634), (28, 24698641), (43, 16082836), (44, 15717317), (47, 14714084), (77, 8981324), (86, 8041418), (94, 7357042), (101, 6847148), (121, 5715388), (154, 4490662), (172, 4020709), (188, 3678521), (202, 3423574), (242, 2857694), (301, 2297548), (308, 2245331), (329, 2102012), (404, 1711787), (473, 1462076), (484, 1428847), (517, 1337644), (602, 1148774), (658, 1051006), (707, 978164), (847, 816484), (946, 731038), (1034, 668822), (1111, 622468), (1204, 574387), (1316, 525503), (1414, 489082), (1694, 408242), (1892, 365519), (2021, 342188), (2068, 334411), (2222, 311234), (2828, 244541), (3311, 208868), (3388, 204121), (3619, 191092), (4042, 171094), (4343, 159236), (4444, 155617), (4747, 145684), (5203, 132916), (5687, 121604), (6622, 104434), (7238, 95546), (7777, 88924), (8084, 85547), (8686, 79618), (9494, 72842), (10406, 66458), (11374, 60802), (12221, 56588), (13244, 52217), (14147, 48884), (14476, 47773), (15554, 44462), (17372, 39809), (18988, 36421), (20812, 33229), (22231, 31108), (22748, 30401), (24442, 28294)]