261857310

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1$

素因数の和:255

約数の個数: 192

約数和(自身を含む): 772208640

約数和(自身を除く): 510351330

約数列:

[1, 2, 3, 5, 6, 10, 11, 13, 15, 22, 26, 30, 31, 33, 39, 55, 62, 65, 66, 78, 93, 110, 121, 130, 143, 155, 165, 179, 186, 195, 242, 286, 310, 330, 341, 358, 363, 390, 403, 429, 465, 537, 605, 682, 715, 726, 806, 858, 895, 930, 1023, 1074, 1209, 1210, 1430, 1573, 1705, 1790, 1815, 1969, 2015, 2046, 2145, 2327, 2418, 2685, 3146, 3410, 3630, 3751, 3938, 4030, 4290, 4433, 4654, 4719, 5115, 5370, 5549, 5907, 6045, 6981, 7502, 7865, 8866, 9438, 9845, 10230, 11098, 11253, 11635, 11814, 12090, 13299, 13962, 15730, 16647, 18755, 19690, 21659, 22165, 22506, 23270, 23595, 25597, 26598, 27745, 29535, 33294, 34905, 37510, 43318, 44330, 47190, 48763, 51194, 55490, 56265, 59070, 61039, 64977, 66495, 69810, 72137, 76791, 83235, 97526, 108295, 112530, 122078, 127985, 129954, 132990, 144274, 146289, 153582, 166470, 183117, 216411, 216590, 243815, 255970, 281567, 292578, 305195, 324885, 360685, 366234, 383955, 432822, 487630, 563134, 610390, 649770, 671429, 721370, 731445, 767910, 793507, 844701, 915585, 1082055, 1342858, 1407835, 1462890, 1587014, 1689402, 1831170, 2014287, 2164110, 2380521, 2815670, 3357145, 3967535, 4028574, 4223505, 4761042, 6714290, 7935070, 8447010, 8728577, 10071435, 11902605, 17457154, 20142870, 23805210, 26185731, 43642885, 52371462, 87285770, 130928655, 261857310]

約数ペア:

[(1, 261857310), (2, 130928655), (3, 87285770), (5, 52371462), (6, 43642885), (10, 26185731), (11, 23805210), (13, 20142870), (15, 17457154), (22, 11902605), (26, 10071435), (30, 8728577), (31, 8447010), (33, 7935070), (39, 6714290), (55, 4761042), (62, 4223505), (65, 4028574), (66, 3967535), (78, 3357145), (93, 2815670), (110, 2380521), (121, 2164110), (130, 2014287), (143, 1831170), (155, 1689402), (165, 1587014), (179, 1462890), (186, 1407835), (195, 1342858), (242, 1082055), (286, 915585), (310, 844701), (330, 793507), (341, 767910), (358, 731445), (363, 721370), (390, 671429), (403, 649770), (429, 610390), (465, 563134), (537, 487630), (605, 432822), (682, 383955), (715, 366234), (726, 360685), (806, 324885), (858, 305195), (895, 292578), (930, 281567), (1023, 255970), (1074, 243815), (1209, 216590), (1210, 216411), (1430, 183117), (1573, 166470), (1705, 153582), (1790, 146289), (1815, 144274), (1969, 132990), (2015, 129954), (2046, 127985), (2145, 122078), (2327, 112530), (2418, 108295), (2685, 97526), (3146, 83235), (3410, 76791), (3630, 72137), (3751, 69810), (3938, 66495), (4030, 64977), (4290, 61039), (4433, 59070), (4654, 56265), (4719, 55490), (5115, 51194), (5370, 48763), (5549, 47190), (5907, 44330), (6045, 43318), (6981, 37510), (7502, 34905), (7865, 33294), (8866, 29535), (9438, 27745), (9845, 26598), (10230, 25597), (11098, 23595), (11253, 23270), (11635, 22506), (11814, 22165), (12090, 21659), (13299, 19690), (13962, 18755), (15730, 16647)]