551468920

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{263}}^1$

素因数の和:413

約数の個数: 128

約数和(自身を含む): 1368576000

約数和(自身を除く): 817107080

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 31, 38, 40, 62, 76, 89, 95, 124, 152, 155, 178, 190, 248, 263, 310, 356, 380, 445, 526, 589, 620, 712, 760, 890, 1052, 1178, 1240, 1315, 1691, 1780, 2104, 2356, 2630, 2759, 2945, 3382, 3560, 4712, 4997, 5260, 5518, 5890, 6764, 8153, 8455, 9994, 10520, 11036, 11780, 13528, 13795, 16306, 16910, 19988, 22072, 23407, 23560, 24985, 27590, 32612, 33820, 39976, 40765, 46814, 49970, 52421, 55180, 65224, 67640, 81530, 93628, 99940, 104842, 110360, 117035, 154907, 163060, 187256, 199880, 209684, 234070, 262105, 309814, 326120, 419368, 444733, 468140, 524210, 619628, 725617, 774535, 889466, 936280, 1048420, 1239256, 1451234, 1549070, 1778932, 2096840, 2223665, 2902468, 3098140, 3557864, 3628085, 4447330, 5804936, 6196280, 7256170, 8894660, 13786723, 14512340, 17789320, 27573446, 29024680, 55146892, 68933615, 110293784, 137867230, 275734460, 551468920]

約数ペア:

[(1, 551468920), (2, 275734460), (4, 137867230), (5, 110293784), (8, 68933615), (10, 55146892), (19, 29024680), (20, 27573446), (31, 17789320), (38, 14512340), (40, 13786723), (62, 8894660), (76, 7256170), (89, 6196280), (95, 5804936), (124, 4447330), (152, 3628085), (155, 3557864), (178, 3098140), (190, 2902468), (248, 2223665), (263, 2096840), (310, 1778932), (356, 1549070), (380, 1451234), (445, 1239256), (526, 1048420), (589, 936280), (620, 889466), (712, 774535), (760, 725617), (890, 619628), (1052, 524210), (1178, 468140), (1240, 444733), (1315, 419368), (1691, 326120), (1780, 309814), (2104, 262105), (2356, 234070), (2630, 209684), (2759, 199880), (2945, 187256), (3382, 163060), (3560, 154907), (4712, 117035), (4997, 110360), (5260, 104842), (5518, 99940), (5890, 93628), (6764, 81530), (8153, 67640), (8455, 65224), (9994, 55180), (10520, 52421), (11036, 49970), (11780, 46814), (13528, 40765), (13795, 39976), (16306, 33820), (16910, 32612), (19988, 27590), (22072, 24985), (23407, 23560)]