261681519780

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1193}}^1\times {\mathrm{6659}}^1$

素因数の和:7931

約数の個数: 192

約数和(自身を含む): 828284486400

約数和(自身を除く): 566602966620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 61, 90, 108, 122, 135, 180, 183, 244, 270, 305, 366, 540, 549, 610, 732, 915, 1098, 1193, 1220, 1647, 1830, 2196, 2386, 2745, 3294, 3579, 3660, 4772, 5490, 5965, 6588, 6659, 7158, 8235, 10737, 10980, 11930, 13318, 14316, 16470, 17895, 19977, 21474, 23860, 26636, 32211, 32940, 33295, 35790, 39954, 42948, 53685, 59931, 64422, 66590, 71580, 72773, 79908, 99885, 107370, 119862, 128844, 133180, 145546, 161055, 179793, 199770, 214740, 218319, 239724, 291092, 299655, 322110, 359586, 363865, 399540, 406199, 436638, 599310, 644220, 654957, 719172, 727730, 812398, 873276, 898965, 1091595, 1198620, 1218597, 1309914, 1455460, 1624796, 1797930, 1964871, 2030995, 2183190, 2437194, 2619828, 3274785, 3595860, 3655791, 3929742, 4061990, 4366380, 4874388, 6092985, 6549570, 7311582, 7859484, 7944187, 8123980, 9824355, 10967373, 12185970, 13099140, 14623164, 15888374, 18278955, 19648710, 21934746, 23832561, 24371940, 31776748, 36557910, 39297420, 39720935, 43869492, 47665122, 54836865, 71497683, 73115820, 79441870, 95330244, 109673730, 119162805, 142995366, 158883740, 214493049, 219347460, 238325610, 285990732, 357488415, 428986098, 476651220, 484595407, 714976830, 857972196, 969190814, 1072465245, 1429953660, 1453786221, 1938381628, 2144930490, 2422977035, 2907572442, 4289860980, 4361358663, 4845954070, 5815144884, 7268931105, 8722717326, 9691908140, 13084075989, 14537862210, 17445434652, 21806793315, 26168151978, 29075724420, 43613586630, 52336303956, 65420379945, 87227173260, 130840759890, 261681519780]

約数ペア:

[(1, 261681519780), (2, 130840759890), (3, 87227173260), (4, 65420379945), (5, 52336303956), (6, 43613586630), (9, 29075724420), (10, 26168151978), (12, 21806793315), (15, 17445434652), (18, 14537862210), (20, 13084075989), (27, 9691908140), (30, 8722717326), (36, 7268931105), (45, 5815144884), (54, 4845954070), (60, 4361358663), (61, 4289860980), (90, 2907572442), (108, 2422977035), (122, 2144930490), (135, 1938381628), (180, 1453786221), (183, 1429953660), (244, 1072465245), (270, 969190814), (305, 857972196), (366, 714976830), (540, 484595407), (549, 476651220), (610, 428986098), (732, 357488415), (915, 285990732), (1098, 238325610), (1193, 219347460), (1220, 214493049), (1647, 158883740), (1830, 142995366), (2196, 119162805), (2386, 109673730), (2745, 95330244), (3294, 79441870), (3579, 73115820), (3660, 71497683), (4772, 54836865), (5490, 47665122), (5965, 43869492), (6588, 39720935), (6659, 39297420), (7158, 36557910), (8235, 31776748), (10737, 24371940), (10980, 23832561), (11930, 21934746), (13318, 19648710), (14316, 18278955), (16470, 15888374), (17895, 14623164), (19977, 13099140), (21474, 12185970), (23860, 10967373), (26636, 9824355), (32211, 8123980), (32940, 7944187), (33295, 7859484), (35790, 7311582), (39954, 6549570), (42948, 6092985), (53685, 4874388), (59931, 4366380), (64422, 4061990), (66590, 3929742), (71580, 3655791), (72773, 3595860), (79908, 3274785), (99885, 2619828), (107370, 2437194), (119862, 2183190), (128844, 2030995), (133180, 1964871), (145546, 1797930), (161055, 1624796), (179793, 1455460), (199770, 1309914), (214740, 1218597), (218319, 1198620), (239724, 1091595), (291092, 898965), (299655, 873276), (322110, 812398), (359586, 727730), (363865, 719172), (399540, 654957), (406199, 644220), (436638, 599310)]