853380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{431}}^1$

素因数の和:457

約数の個数: 72

約数和(自身を含む): 2830464

約数和(自身を除く): 1977084

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 431, 495, 660, 862, 990, 1293, 1724, 1980, 2155, 2586, 3879, 4310, 4741, 5172, 6465, 7758, 8620, 9482, 12930, 14223, 15516, 18964, 19395, 23705, 25860, 28446, 38790, 42669, 47410, 56892, 71115, 77580, 85338, 94820, 142230, 170676, 213345, 284460, 426690, 853380]

約数ペア:

[(1, 853380), (2, 426690), (3, 284460), (4, 213345), (5, 170676), (6, 142230), (9, 94820), (10, 85338), (11, 77580), (12, 71115), (15, 56892), (18, 47410), (20, 42669), (22, 38790), (30, 28446), (33, 25860), (36, 23705), (44, 19395), (45, 18964), (55, 15516), (60, 14223), (66, 12930), (90, 9482), (99, 8620), (110, 7758), (132, 6465), (165, 5172), (180, 4741), (198, 4310), (220, 3879), (330, 2586), (396, 2155), (431, 1980), (495, 1724), (660, 1293), (862, 990)]