1781820720

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{557}}^1\times {\mathrm{1481}}^1$

素因数の和:2060

約数の個数: 160

約数和(自身を含む): 6152552640

約数和(自身を除く): 4370731920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 108, 120, 135, 144, 180, 216, 240, 270, 360, 432, 540, 557, 720, 1080, 1114, 1481, 1671, 2160, 2228, 2785, 2962, 3342, 4443, 4456, 5013, 5570, 5924, 6684, 7405, 8355, 8886, 8912, 10026, 11140, 11848, 13329, 13368, 14810, 15039, 16710, 17772, 20052, 22215, 22280, 23696, 25065, 26658, 26736, 29620, 30078, 33420, 35544, 39987, 40104, 44430, 44560, 50130, 53316, 59240, 60156, 66645, 66840, 71088, 75195, 79974, 80208, 88860, 100260, 106632, 118480, 120312, 133290, 133680, 150390, 159948, 177720, 199935, 200520, 213264, 240624, 266580, 300780, 319896, 355440, 399870, 401040, 533160, 601560, 639792, 799740, 824917, 1066320, 1203120, 1599480, 1649834, 2474751, 3198960, 3299668, 4124585, 4949502, 6599336, 7424253, 8249170, 9899004, 12373755, 13198672, 14848506, 16498340, 19798008, 22272759, 24747510, 29697012, 32996680, 37121265, 39596016, 44545518, 49495020, 59394024, 65993360, 74242530, 89091036, 98990040, 111363795, 118788048, 148485060, 178182072, 197980080, 222727590, 296970120, 356364144, 445455180, 593940240, 890910360, 1781820720]

約数ペア:

[(1, 1781820720), (2, 890910360), (3, 593940240), (4, 445455180), (5, 356364144), (6, 296970120), (8, 222727590), (9, 197980080), (10, 178182072), (12, 148485060), (15, 118788048), (16, 111363795), (18, 98990040), (20, 89091036), (24, 74242530), (27, 65993360), (30, 59394024), (36, 49495020), (40, 44545518), (45, 39596016), (48, 37121265), (54, 32996680), (60, 29697012), (72, 24747510), (80, 22272759), (90, 19798008), (108, 16498340), (120, 14848506), (135, 13198672), (144, 12373755), (180, 9899004), (216, 8249170), (240, 7424253), (270, 6599336), (360, 4949502), (432, 4124585), (540, 3299668), (557, 3198960), (720, 2474751), (1080, 1649834), (1114, 1599480), (1481, 1203120), (1671, 1066320), (2160, 824917), (2228, 799740), (2785, 639792), (2962, 601560), (3342, 533160), (4443, 401040), (4456, 399870), (5013, 355440), (5570, 319896), (5924, 300780), (6684, 266580), (7405, 240624), (8355, 213264), (8886, 200520), (8912, 199935), (10026, 177720), (11140, 159948), (11848, 150390), (13329, 133680), (13368, 133290), (14810, 120312), (15039, 118480), (16710, 106632), (17772, 100260), (20052, 88860), (22215, 80208), (22280, 79974), (23696, 75195), (25065, 71088), (26658, 66840), (26736, 66645), (29620, 60156), (30078, 59240), (33420, 53316), (35544, 50130), (39987, 44560), (40104, 44430)]