81331740

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{3797}}^1$

素因数の和:3836

約数の個数: 144

約数和(自身を含む): 298613952

約数和(自身を除く): 217282212

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 17, 18, 20, 21, 28, 30, 34, 35, 36, 42, 45, 51, 60, 63, 68, 70, 84, 85, 90, 102, 105, 119, 126, 140, 153, 170, 180, 204, 210, 238, 252, 255, 306, 315, 340, 357, 420, 476, 510, 595, 612, 630, 714, 765, 1020, 1071, 1190, 1260, 1428, 1530, 1785, 2142, 2380, 3060, 3570, 3797, 4284, 5355, 7140, 7594, 10710, 11391, 15188, 18985, 21420, 22782, 26579, 34173, 37970, 45564, 53158, 56955, 64549, 68346, 75940, 79737, 106316, 113910, 129098, 132895, 136692, 159474, 170865, 193647, 227820, 239211, 258196, 265790, 318948, 322745, 341730, 387294, 398685, 451843, 478422, 531580, 580941, 645490, 683460, 774588, 797370, 903686, 956844, 968235, 1161882, 1196055, 1290980, 1355529, 1594740, 1807372, 1936470, 2259215, 2323764, 2392110, 2711058, 2904705, 3872940, 4066587, 4518430, 4784220, 5422116, 5809410, 6777645, 8133174, 9036860, 11618820, 13555290, 16266348, 20332935, 27110580, 40665870, 81331740]

約数ペア:

[(1, 81331740), (2, 40665870), (3, 27110580), (4, 20332935), (5, 16266348), (6, 13555290), (7, 11618820), (9, 9036860), (10, 8133174), (12, 6777645), (14, 5809410), (15, 5422116), (17, 4784220), (18, 4518430), (20, 4066587), (21, 3872940), (28, 2904705), (30, 2711058), (34, 2392110), (35, 2323764), (36, 2259215), (42, 1936470), (45, 1807372), (51, 1594740), (60, 1355529), (63, 1290980), (68, 1196055), (70, 1161882), (84, 968235), (85, 956844), (90, 903686), (102, 797370), (105, 774588), (119, 683460), (126, 645490), (140, 580941), (153, 531580), (170, 478422), (180, 451843), (204, 398685), (210, 387294), (238, 341730), (252, 322745), (255, 318948), (306, 265790), (315, 258196), (340, 239211), (357, 227820), (420, 193647), (476, 170865), (510, 159474), (595, 136692), (612, 132895), (630, 129098), (714, 113910), (765, 106316), (1020, 79737), (1071, 75940), (1190, 68346), (1260, 64549), (1428, 56955), (1530, 53158), (1785, 45564), (2142, 37970), (2380, 34173), (3060, 26579), (3570, 22782), (3797, 21420), (4284, 18985), (5355, 15188), (7140, 11391), (7594, 10710)]