20026500

素因数分解:

$2^2\times 3^1\times 5^3\times {\mathrm{13}}^2\times {\mathrm{79}}^1$

素因数の和:127

約数の個数: 144

約数和(自身を含む): 63947520

約数和(自身を除く): 43921020

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 79, 100, 125, 130, 150, 156, 158, 169, 195, 237, 250, 260, 300, 316, 325, 338, 375, 390, 395, 474, 500, 507, 650, 676, 750, 780, 790, 845, 948, 975, 1014, 1027, 1185, 1300, 1500, 1580, 1625, 1690, 1950, 1975, 2028, 2054, 2370, 2535, 3081, 3250, 3380, 3900, 3950, 4108, 4225, 4740, 4875, 5070, 5135, 5925, 6162, 6500, 7900, 8450, 9750, 9875, 10140, 10270, 11850, 12324, 12675, 13351, 15405, 16900, 19500, 19750, 20540, 21125, 23700, 25350, 25675, 26702, 29625, 30810, 39500, 40053, 42250, 50700, 51350, 53404, 59250, 61620, 63375, 66755, 77025, 80106, 84500, 102700, 118500, 126750, 128375, 133510, 154050, 160212, 200265, 253500, 256750, 267020, 308100, 333775, 385125, 400530, 513500, 667550, 770250, 801060, 1001325, 1335100, 1540500, 1668875, 2002650, 3337750, 4005300, 5006625, 6675500, 10013250, 20026500]

約数ペア:

[(1, 20026500), (2, 10013250), (3, 6675500), (4, 5006625), (5, 4005300), (6, 3337750), (10, 2002650), (12, 1668875), (13, 1540500), (15, 1335100), (20, 1001325), (25, 801060), (26, 770250), (30, 667550), (39, 513500), (50, 400530), (52, 385125), (60, 333775), (65, 308100), (75, 267020), (78, 256750), (79, 253500), (100, 200265), (125, 160212), (130, 154050), (150, 133510), (156, 128375), (158, 126750), (169, 118500), (195, 102700), (237, 84500), (250, 80106), (260, 77025), (300, 66755), (316, 63375), (325, 61620), (338, 59250), (375, 53404), (390, 51350), (395, 50700), (474, 42250), (500, 40053), (507, 39500), (650, 30810), (676, 29625), (750, 26702), (780, 25675), (790, 25350), (845, 23700), (948, 21125), (975, 20540), (1014, 19750), (1027, 19500), (1185, 16900), (1300, 15405), (1500, 13351), (1580, 12675), (1625, 12324), (1690, 11850), (1950, 10270), (1975, 10140), (2028, 9875), (2054, 9750), (2370, 8450), (2535, 7900), (3081, 6500), (3250, 6162), (3380, 5925), (3900, 5135), (3950, 5070), (4108, 4875), (4225, 4740)]