16764800

素因数分解:

$2^7\times 5^2\times {\mathrm{13}}^2\times {\mathrm{31}}^1$

素因数の和:81

約数の個数: 144

約数和(自身を含む): 46291680

約数和(自身を除く): 29526880

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, 128, 130, 155, 160, 169, 200, 208, 248, 260, 310, 320, 325, 338, 400, 403, 416, 496, 520, 620, 640, 650, 676, 775, 800, 806, 832, 845, 992, 1040, 1240, 1300, 1352, 1550, 1600, 1612, 1664, 1690, 1984, 2015, 2080, 2480, 2600, 2704, 3100, 3200, 3224, 3380, 3968, 4030, 4160, 4225, 4960, 5200, 5239, 5408, 6200, 6448, 6760, 8060, 8320, 8450, 9920, 10075, 10400, 10478, 10816, 12400, 12896, 13520, 16120, 16900, 19840, 20150, 20800, 20956, 21632, 24800, 25792, 26195, 27040, 32240, 33800, 40300, 41600, 41912, 49600, 51584, 52390, 54080, 64480, 67600, 80600, 83824, 99200, 104780, 108160, 128960, 130975, 135200, 161200, 167648, 209560, 257920, 261950, 270400, 322400, 335296, 419120, 523900, 540800, 644800, 670592, 838240, 1047800, 1289600, 1676480, 2095600, 3352960, 4191200, 8382400, 16764800]

約数ペア:

[(1, 16764800), (2, 8382400), (4, 4191200), (5, 3352960), (8, 2095600), (10, 1676480), (13, 1289600), (16, 1047800), (20, 838240), (25, 670592), (26, 644800), (31, 540800), (32, 523900), (40, 419120), (50, 335296), (52, 322400), (62, 270400), (64, 261950), (65, 257920), (80, 209560), (100, 167648), (104, 161200), (124, 135200), (128, 130975), (130, 128960), (155, 108160), (160, 104780), (169, 99200), (200, 83824), (208, 80600), (248, 67600), (260, 64480), (310, 54080), (320, 52390), (325, 51584), (338, 49600), (400, 41912), (403, 41600), (416, 40300), (496, 33800), (520, 32240), (620, 27040), (640, 26195), (650, 25792), (676, 24800), (775, 21632), (800, 20956), (806, 20800), (832, 20150), (845, 19840), (992, 16900), (1040, 16120), (1240, 13520), (1300, 12896), (1352, 12400), (1550, 10816), (1600, 10478), (1612, 10400), (1664, 10075), (1690, 9920), (1984, 8450), (2015, 8320), (2080, 8060), (2480, 6760), (2600, 6448), (2704, 6200), (3100, 5408), (3200, 5239), (3224, 5200), (3380, 4960), (3968, 4225), (4030, 4160)]