12896000

素因数分解:

$2^8\times 5^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1$

素因数の和:75

約数の個数: 144

約数和(自身を含む): 35712768

約数和(自身を除く): 22816768

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 31, 32, 40, 50, 52, 62, 64, 65, 80, 100, 104, 124, 125, 128, 130, 155, 160, 200, 208, 248, 250, 256, 260, 310, 320, 325, 400, 403, 416, 496, 500, 520, 620, 640, 650, 775, 800, 806, 832, 992, 1000, 1040, 1240, 1280, 1300, 1550, 1600, 1612, 1625, 1664, 1984, 2000, 2015, 2080, 2480, 2600, 3100, 3200, 3224, 3250, 3328, 3875, 3968, 4000, 4030, 4160, 4960, 5200, 6200, 6400, 6448, 6500, 7750, 7936, 8000, 8060, 8320, 9920, 10075, 10400, 12400, 12896, 13000, 15500, 16000, 16120, 16640, 19840, 20150, 20800, 24800, 25792, 26000, 31000, 32000, 32240, 39680, 40300, 41600, 49600, 50375, 51584, 52000, 62000, 64480, 80600, 83200, 99200, 100750, 103168, 104000, 124000, 128960, 161200, 198400, 201500, 208000, 248000, 257920, 322400, 403000, 416000, 496000, 515840, 644800, 806000, 992000, 1289600, 1612000, 2579200, 3224000, 6448000, 12896000]

約数ペア:

[(1, 12896000), (2, 6448000), (4, 3224000), (5, 2579200), (8, 1612000), (10, 1289600), (13, 992000), (16, 806000), (20, 644800), (25, 515840), (26, 496000), (31, 416000), (32, 403000), (40, 322400), (50, 257920), (52, 248000), (62, 208000), (64, 201500), (65, 198400), (80, 161200), (100, 128960), (104, 124000), (124, 104000), (125, 103168), (128, 100750), (130, 99200), (155, 83200), (160, 80600), (200, 64480), (208, 62000), (248, 52000), (250, 51584), (256, 50375), (260, 49600), (310, 41600), (320, 40300), (325, 39680), (400, 32240), (403, 32000), (416, 31000), (496, 26000), (500, 25792), (520, 24800), (620, 20800), (640, 20150), (650, 19840), (775, 16640), (800, 16120), (806, 16000), (832, 15500), (992, 13000), (1000, 12896), (1040, 12400), (1240, 10400), (1280, 10075), (1300, 9920), (1550, 8320), (1600, 8060), (1612, 8000), (1625, 7936), (1664, 7750), (1984, 6500), (2000, 6448), (2015, 6400), (2080, 6200), (2480, 5200), (2600, 4960), (3100, 4160), (3200, 4030), (3224, 4000), (3250, 3968), (3328, 3875)]