213695720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{20627}}^1$

素因数の和:20682

約数の個数: 64

約数和(自身を含む): 564382080

約数和(自身を除く): 350686360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 37, 40, 56, 70, 74, 140, 148, 185, 259, 280, 296, 370, 518, 740, 1036, 1295, 1480, 2072, 2590, 5180, 10360, 20627, 41254, 82508, 103135, 144389, 165016, 206270, 288778, 412540, 577556, 721945, 763199, 825080, 1155112, 1443890, 1526398, 2887780, 3052796, 3815995, 5342393, 5775560, 6105592, 7631990, 10684786, 15263980, 21369572, 26711965, 30527960, 42739144, 53423930, 106847860, 213695720]

約数ペア:

[(1, 213695720), (2, 106847860), (4, 53423930), (5, 42739144), (7, 30527960), (8, 26711965), (10, 21369572), (14, 15263980), (20, 10684786), (28, 7631990), (35, 6105592), (37, 5775560), (40, 5342393), (56, 3815995), (70, 3052796), (74, 2887780), (140, 1526398), (148, 1443890), (185, 1155112), (259, 825080), (280, 763199), (296, 721945), (370, 577556), (518, 412540), (740, 288778), (1036, 206270), (1295, 165016), (1480, 144389), (2072, 103135), (2590, 82508), (5180, 41254), (10360, 20627)]