218813560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{21121}}^1$

素因数の和:21176

約数の個数: 64

約数和(自身を含む): 577897920

約数和(自身を除く): 359084360

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, 21121, 42242, 84484, 105605, 147847, 168968, 211210, 295694, 422420, 591388, 739235, 781477, 844840, 1182776, 1478470, 1562954, 2956940, 3125908, 3907385, 5470339, 5913880, 6251816, 7814770, 10940678, 15629540, 21881356, 27351695, 31259080, 43762712, 54703390, 109406780, 218813560]

約数ペア:

[(1, 218813560), (2, 109406780), (4, 54703390), (5, 43762712), (7, 31259080), (8, 27351695), (10, 21881356), (14, 15629540), (20, 10940678), (28, 7814770), (35, 6251816), (37, 5913880), (40, 5470339), (56, 3907385), (70, 3125908), (74, 2956940), (140, 1562954), (148, 1478470), (185, 1182776), (259, 844840), (280, 781477), (296, 739235), (370, 591388), (518, 422420), (740, 295694), (1036, 211210), (1295, 168968), (1480, 147847), (2072, 105605), (2590, 84484), (5180, 42242), (10360, 21121)]