661444350

素因数分解:

$2^1\times 3^1\times 5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{449}}^1$

素因数の和:555

約数の個数: 192

約数和(自身を含む): 1992729600

約数和(自身を除く): 1331285250

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 23, 25, 30, 35, 42, 46, 50, 61, 69, 70, 75, 105, 115, 122, 138, 150, 161, 175, 183, 210, 230, 305, 322, 345, 350, 366, 427, 449, 483, 525, 575, 610, 690, 805, 854, 898, 915, 966, 1050, 1150, 1281, 1347, 1403, 1525, 1610, 1725, 1830, 2135, 2245, 2415, 2562, 2694, 2806, 3050, 3143, 3450, 4025, 4209, 4270, 4490, 4575, 4830, 6286, 6405, 6735, 7015, 8050, 8418, 9150, 9429, 9821, 10327, 10675, 11225, 12075, 12810, 13470, 14030, 15715, 18858, 19642, 20654, 21045, 21350, 22450, 24150, 27389, 29463, 30981, 31430, 32025, 33675, 35075, 42090, 47145, 49105, 51635, 54778, 58926, 61962, 64050, 67350, 70150, 72289, 78575, 82167, 94290, 98210, 103270, 105225, 136945, 144578, 147315, 154905, 157150, 164334, 191723, 210450, 216867, 235725, 245525, 258175, 273890, 294630, 309810, 361445, 383446, 410835, 433734, 471450, 491050, 516350, 575169, 629947, 684725, 722890, 736575, 774525, 821670, 958615, 1084335, 1150338, 1259894, 1369450, 1473150, 1549050, 1807225, 1889841, 1917230, 2054175, 2168670, 2875845, 3149735, 3614450, 3779682, 4108350, 4409629, 4793075, 5421675, 5751690, 6299470, 8819258, 9449205, 9586150, 10843350, 13228887, 14379225, 15748675, 18898410, 22048145, 26457774, 28758450, 31497350, 44096290, 47246025, 66144435, 94492050, 110240725, 132288870, 220481450, 330722175, 661444350]

約数ペア:

[(1, 661444350), (2, 330722175), (3, 220481450), (5, 132288870), (6, 110240725), (7, 94492050), (10, 66144435), (14, 47246025), (15, 44096290), (21, 31497350), (23, 28758450), (25, 26457774), (30, 22048145), (35, 18898410), (42, 15748675), (46, 14379225), (50, 13228887), (61, 10843350), (69, 9586150), (70, 9449205), (75, 8819258), (105, 6299470), (115, 5751690), (122, 5421675), (138, 4793075), (150, 4409629), (161, 4108350), (175, 3779682), (183, 3614450), (210, 3149735), (230, 2875845), (305, 2168670), (322, 2054175), (345, 1917230), (350, 1889841), (366, 1807225), (427, 1549050), (449, 1473150), (483, 1369450), (525, 1259894), (575, 1150338), (610, 1084335), (690, 958615), (805, 821670), (854, 774525), (898, 736575), (915, 722890), (966, 684725), (1050, 629947), (1150, 575169), (1281, 516350), (1347, 491050), (1403, 471450), (1525, 433734), (1610, 410835), (1725, 383446), (1830, 361445), (2135, 309810), (2245, 294630), (2415, 273890), (2562, 258175), (2694, 245525), (2806, 235725), (3050, 216867), (3143, 210450), (3450, 191723), (4025, 164334), (4209, 157150), (4270, 154905), (4490, 147315), (4575, 144578), (4830, 136945), (6286, 105225), (6405, 103270), (6735, 98210), (7015, 94290), (8050, 82167), (8418, 78575), (9150, 72289), (9429, 70150), (9821, 67350), (10327, 64050), (10675, 61962), (11225, 58926), (12075, 54778), (12810, 51635), (13470, 49105), (14030, 47145), (15715, 42090), (18858, 35075), (19642, 33675), (20654, 32025), (21045, 31430), (21350, 30981), (22450, 29463), (24150, 27389)]