215689540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{571}}^1$

素因数の和:709

約数の個数: 96

約数和(自身を含む): 529296768

約数和(自身を除く): 313607228

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 101, 110, 170, 187, 202, 220, 340, 374, 404, 505, 571, 748, 935, 1010, 1111, 1142, 1717, 1870, 2020, 2222, 2284, 2855, 3434, 3740, 4444, 5555, 5710, 6281, 6868, 8585, 9707, 11110, 11420, 12562, 17170, 18887, 19414, 22220, 25124, 31405, 34340, 37774, 38828, 48535, 57671, 62810, 75548, 94435, 97070, 106777, 115342, 125620, 188870, 194140, 213554, 230684, 288355, 377740, 427108, 533885, 576710, 634381, 980407, 1067770, 1153420, 1268762, 1960814, 2135540, 2537524, 3171905, 3921628, 4902035, 6343810, 9804070, 10784477, 12687620, 19608140, 21568954, 43137908, 53922385, 107844770, 215689540]

約数ペア:

[(1, 215689540), (2, 107844770), (4, 53922385), (5, 43137908), (10, 21568954), (11, 19608140), (17, 12687620), (20, 10784477), (22, 9804070), (34, 6343810), (44, 4902035), (55, 3921628), (68, 3171905), (85, 2537524), (101, 2135540), (110, 1960814), (170, 1268762), (187, 1153420), (202, 1067770), (220, 980407), (340, 634381), (374, 576710), (404, 533885), (505, 427108), (571, 377740), (748, 288355), (935, 230684), (1010, 213554), (1111, 194140), (1142, 188870), (1717, 125620), (1870, 115342), (2020, 106777), (2222, 97070), (2284, 94435), (2855, 75548), (3434, 62810), (3740, 57671), (4444, 48535), (5555, 38828), (5710, 37774), (6281, 34340), (6868, 31405), (8585, 25124), (9707, 22220), (11110, 19414), (11420, 18887), (12562, 17170)]