261495780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1019}}^1$

素因数の和:1098

約数の個数: 192

約数和(自身を含む): 921231360

約数和(自身を除く): 659735580

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 47, 52, 60, 65, 70, 78, 84, 91, 94, 105, 130, 140, 141, 156, 182, 188, 195, 210, 235, 260, 273, 282, 329, 364, 390, 420, 455, 470, 546, 564, 611, 658, 705, 780, 910, 940, 987, 1019, 1092, 1222, 1316, 1365, 1410, 1645, 1820, 1833, 1974, 2038, 2444, 2730, 2820, 3055, 3057, 3290, 3666, 3948, 4076, 4277, 4935, 5095, 5460, 6110, 6114, 6580, 7133, 7332, 8554, 9165, 9870, 10190, 12220, 12228, 12831, 13247, 14266, 15285, 17108, 18330, 19740, 20380, 21385, 21399, 25662, 26494, 28532, 30570, 35665, 36660, 39741, 42770, 42798, 47893, 51324, 52988, 61140, 64155, 66235, 71330, 79482, 85540, 85596, 92729, 95786, 106995, 128310, 132470, 142660, 143679, 158964, 185458, 191572, 198705, 213990, 239465, 256620, 264940, 278187, 287358, 335251, 370916, 397410, 427980, 463645, 478930, 556374, 574716, 622609, 670502, 718395, 794820, 927290, 957860, 1005753, 1112748, 1245218, 1341004, 1390935, 1436790, 1676255, 1854580, 1867827, 2011506, 2490436, 2781870, 2873580, 3113045, 3352510, 3735654, 4023012, 4358263, 5028765, 5563740, 6226090, 6705020, 7471308, 8716526, 9339135, 10057530, 12452180, 13074789, 17433052, 18678270, 20115060, 21791315, 26149578, 37356540, 43582630, 52299156, 65373945, 87165260, 130747890, 261495780]

約数ペア:

[(1, 261495780), (2, 130747890), (3, 87165260), (4, 65373945), (5, 52299156), (6, 43582630), (7, 37356540), (10, 26149578), (12, 21791315), (13, 20115060), (14, 18678270), (15, 17433052), (20, 13074789), (21, 12452180), (26, 10057530), (28, 9339135), (30, 8716526), (35, 7471308), (39, 6705020), (42, 6226090), (47, 5563740), (52, 5028765), (60, 4358263), (65, 4023012), (70, 3735654), (78, 3352510), (84, 3113045), (91, 2873580), (94, 2781870), (105, 2490436), (130, 2011506), (140, 1867827), (141, 1854580), (156, 1676255), (182, 1436790), (188, 1390935), (195, 1341004), (210, 1245218), (235, 1112748), (260, 1005753), (273, 957860), (282, 927290), (329, 794820), (364, 718395), (390, 670502), (420, 622609), (455, 574716), (470, 556374), (546, 478930), (564, 463645), (611, 427980), (658, 397410), (705, 370916), (780, 335251), (910, 287358), (940, 278187), (987, 264940), (1019, 256620), (1092, 239465), (1222, 213990), (1316, 198705), (1365, 191572), (1410, 185458), (1645, 158964), (1820, 143679), (1833, 142660), (1974, 132470), (2038, 128310), (2444, 106995), (2730, 95786), (2820, 92729), (3055, 85596), (3057, 85540), (3290, 79482), (3666, 71330), (3948, 66235), (4076, 64155), (4277, 61140), (4935, 52988), (5095, 51324), (5460, 47893), (6110, 42798), (6114, 42770), (6580, 39741), (7133, 36660), (7332, 35665), (8554, 30570), (9165, 28532), (9870, 26494), (10190, 25662), (12220, 21399), (12228, 21385), (12831, 20380), (13247, 19740), (14266, 18330), (15285, 17108)]