78750105

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{307}}^1\times {\mathrm{349}}^1$

素因数の和:678

約数の個数: 48

約数和(自身を含む): 147470400

約数和(自身を除く): 68720295

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 307, 349, 735, 921, 1047, 1535, 1745, 2149, 2443, 4605, 5235, 6447, 7329, 10745, 12215, 15043, 17101, 32235, 36645, 45129, 51303, 75215, 85505, 107143, 225645, 256515, 321429, 535715, 750001, 1607145, 2250003, 3750005, 5250007, 11250015, 15750021, 26250035, 78750105]

約数ペア:

[(1, 78750105), (3, 26250035), (5, 15750021), (7, 11250015), (15, 5250007), (21, 3750005), (35, 2250003), (49, 1607145), (105, 750001), (147, 535715), (245, 321429), (307, 256515), (349, 225645), (735, 107143), (921, 85505), (1047, 75215), (1535, 51303), (1745, 45129), (2149, 36645), (2443, 32235), (4605, 17101), (5235, 15043), (6447, 12215), (7329, 10745)]