51301900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1$

素因数の和:144

約数の個数: 144

約数和(自身を含む): 132213760

約数和(自身を除く): 80911860

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 25, 26, 31, 38, 50, 52, 62, 65, 67, 76, 95, 100, 124, 130, 134, 155, 190, 247, 260, 268, 310, 325, 335, 380, 403, 475, 494, 589, 620, 650, 670, 775, 806, 871, 950, 988, 1178, 1235, 1273, 1300, 1340, 1550, 1612, 1675, 1742, 1900, 2015, 2077, 2356, 2470, 2546, 2945, 3100, 3350, 3484, 4030, 4154, 4355, 4940, 5092, 5890, 6175, 6365, 6700, 7657, 8060, 8308, 8710, 10075, 10385, 11780, 12350, 12730, 14725, 15314, 16549, 17420, 20150, 20770, 21775, 24700, 25460, 27001, 29450, 30628, 31825, 33098, 38285, 39463, 40300, 41540, 43550, 51925, 54002, 58900, 63650, 66196, 76570, 78926, 82745, 87100, 103850, 108004, 127300, 135005, 153140, 157852, 165490, 191425, 197315, 207700, 270010, 330980, 382850, 394630, 413725, 513019, 540020, 675025, 765700, 789260, 827450, 986575, 1026038, 1350050, 1654900, 1973150, 2052076, 2565095, 2700100, 3946300, 5130190, 10260380, 12825475, 25650950, 51301900]

約数ペア:

[(1, 51301900), (2, 25650950), (4, 12825475), (5, 10260380), (10, 5130190), (13, 3946300), (19, 2700100), (20, 2565095), (25, 2052076), (26, 1973150), (31, 1654900), (38, 1350050), (50, 1026038), (52, 986575), (62, 827450), (65, 789260), (67, 765700), (76, 675025), (95, 540020), (100, 513019), (124, 413725), (130, 394630), (134, 382850), (155, 330980), (190, 270010), (247, 207700), (260, 197315), (268, 191425), (310, 165490), (325, 157852), (335, 153140), (380, 135005), (403, 127300), (475, 108004), (494, 103850), (589, 87100), (620, 82745), (650, 78926), (670, 76570), (775, 66196), (806, 63650), (871, 58900), (950, 54002), (988, 51925), (1178, 43550), (1235, 41540), (1273, 40300), (1300, 39463), (1340, 38285), (1550, 33098), (1612, 31825), (1675, 30628), (1742, 29450), (1900, 27001), (2015, 25460), (2077, 24700), (2356, 21775), (2470, 20770), (2546, 20150), (2945, 17420), (3100, 16549), (3350, 15314), (3484, 14725), (4030, 12730), (4154, 12350), (4355, 11780), (4940, 10385), (5092, 10075), (5890, 8710), (6175, 8308), (6365, 8060), (6700, 7657)]