261461564

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:148

約数の個数: 192

約数和(自身を含む): 650280960

約数和(自身を除く): 388819396

約数列:

[1, 2, 4, 7, 13, 14, 17, 26, 28, 29, 31, 34, 47, 52, 58, 62, 68, 91, 94, 116, 119, 124, 182, 188, 203, 217, 221, 238, 329, 364, 377, 403, 406, 434, 442, 476, 493, 527, 611, 658, 754, 799, 806, 812, 868, 884, 899, 986, 1054, 1222, 1316, 1363, 1457, 1508, 1547, 1598, 1612, 1798, 1972, 2108, 2444, 2639, 2726, 2821, 2914, 3094, 3196, 3451, 3596, 3689, 4277, 5278, 5452, 5593, 5642, 5828, 6188, 6293, 6409, 6851, 6902, 7378, 8554, 9541, 10199, 10387, 10556, 11186, 11284, 11687, 12586, 12818, 13702, 13804, 14756, 15283, 17108, 17719, 18941, 19082, 20398, 20774, 22372, 23171, 23374, 24769, 25172, 25636, 27404, 30566, 35438, 37882, 38164, 40796, 41548, 42253, 44863, 46342, 46748, 47957, 49538, 61132, 70876, 72709, 75764, 81809, 84506, 89726, 92684, 95914, 99076, 106981, 124033, 132587, 145418, 162197, 163618, 169012, 173383, 179452, 191828, 198679, 213962, 248066, 265174, 290836, 295771, 301223, 321997, 324394, 327236, 346766, 397358, 427924, 496132, 530348, 549289, 591542, 602446, 643994, 648788, 693532, 718301, 794716, 1098578, 1183084, 1204892, 1287988, 1390753, 1436602, 2108561, 2197156, 2253979, 2781506, 2873204, 3845023, 4217122, 4507958, 5028107, 5563012, 7690046, 8434244, 9015916, 9337913, 10056214, 15380092, 18675826, 20112428, 37351652, 65365391, 130730782, 261461564]

約数ペア:

[(1, 261461564), (2, 130730782), (4, 65365391), (7, 37351652), (13, 20112428), (14, 18675826), (17, 15380092), (26, 10056214), (28, 9337913), (29, 9015916), (31, 8434244), (34, 7690046), (47, 5563012), (52, 5028107), (58, 4507958), (62, 4217122), (68, 3845023), (91, 2873204), (94, 2781506), (116, 2253979), (119, 2197156), (124, 2108561), (182, 1436602), (188, 1390753), (203, 1287988), (217, 1204892), (221, 1183084), (238, 1098578), (329, 794716), (364, 718301), (377, 693532), (403, 648788), (406, 643994), (434, 602446), (442, 591542), (476, 549289), (493, 530348), (527, 496132), (611, 427924), (658, 397358), (754, 346766), (799, 327236), (806, 324394), (812, 321997), (868, 301223), (884, 295771), (899, 290836), (986, 265174), (1054, 248066), (1222, 213962), (1316, 198679), (1363, 191828), (1457, 179452), (1508, 173383), (1547, 169012), (1598, 163618), (1612, 162197), (1798, 145418), (1972, 132587), (2108, 124033), (2444, 106981), (2639, 99076), (2726, 95914), (2821, 92684), (2914, 89726), (3094, 84506), (3196, 81809), (3451, 75764), (3596, 72709), (3689, 70876), (4277, 61132), (5278, 49538), (5452, 47957), (5593, 46748), (5642, 46342), (5828, 44863), (6188, 42253), (6293, 41548), (6409, 40796), (6851, 38164), (6902, 37882), (7378, 35438), (8554, 30566), (9541, 27404), (10199, 25636), (10387, 25172), (10556, 24769), (11186, 23374), (11284, 23171), (11687, 22372), (12586, 20774), (12818, 20398), (13702, 19082), (13804, 18941), (14756, 17719), (15283, 17108)]