1990231560

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{499}}^1\times {\mathrm{1231}}^1$

素因数の和:1753

約数の個数: 160

約数和(自身を含む): 6708240000

約数和(自身を除く): 4718008440

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 270, 324, 360, 405, 499, 540, 648, 810, 998, 1080, 1231, 1497, 1620, 1996, 2462, 2495, 2994, 3240, 3693, 3992, 4491, 4924, 4990, 5988, 6155, 7386, 7485, 8982, 9848, 9980, 11079, 11976, 12310, 13473, 14772, 14970, 17964, 18465, 19960, 22158, 22455, 24620, 26946, 29544, 29940, 33237, 35928, 36930, 40419, 44316, 44910, 49240, 53892, 55395, 59880, 66474, 67365, 73860, 80838, 88632, 89820, 99711, 107784, 110790, 132948, 134730, 147720, 161676, 166185, 179640, 199422, 202095, 221580, 265896, 269460, 323352, 332370, 398844, 404190, 443160, 498555, 538920, 614269, 664740, 797688, 808380, 997110, 1228538, 1329480, 1616760, 1842807, 1994220, 2457076, 3071345, 3685614, 3988440, 4914152, 5528421, 6142690, 7371228, 9214035, 11056842, 12285380, 14742456, 16585263, 18428070, 22113684, 24570760, 27642105, 33170526, 36856140, 44227368, 49755789, 55284210, 66341052, 73712280, 82926315, 99511578, 110568420, 132682104, 165852630, 199023156, 221136840, 248778945, 331705260, 398046312, 497557890, 663410520, 995115780, 1990231560]

約数ペア:

[(1, 1990231560), (2, 995115780), (3, 663410520), (4, 497557890), (5, 398046312), (6, 331705260), (8, 248778945), (9, 221136840), (10, 199023156), (12, 165852630), (15, 132682104), (18, 110568420), (20, 99511578), (24, 82926315), (27, 73712280), (30, 66341052), (36, 55284210), (40, 49755789), (45, 44227368), (54, 36856140), (60, 33170526), (72, 27642105), (81, 24570760), (90, 22113684), (108, 18428070), (120, 16585263), (135, 14742456), (162, 12285380), (180, 11056842), (216, 9214035), (270, 7371228), (324, 6142690), (360, 5528421), (405, 4914152), (499, 3988440), (540, 3685614), (648, 3071345), (810, 2457076), (998, 1994220), (1080, 1842807), (1231, 1616760), (1497, 1329480), (1620, 1228538), (1996, 997110), (2462, 808380), (2495, 797688), (2994, 664740), (3240, 614269), (3693, 538920), (3992, 498555), (4491, 443160), (4924, 404190), (4990, 398844), (5988, 332370), (6155, 323352), (7386, 269460), (7485, 265896), (8982, 221580), (9848, 202095), (9980, 199422), (11079, 179640), (11976, 166185), (12310, 161676), (13473, 147720), (14772, 134730), (14970, 132948), (17964, 110790), (18465, 107784), (19960, 99711), (22158, 89820), (22455, 88632), (24620, 80838), (26946, 73860), (29544, 67365), (29940, 66474), (33237, 59880), (35928, 55395), (36930, 53892), (40419, 49240), (44316, 44910)]