20938560

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1283}}^1$

素因数の和:1320

約数の個数: 112

約数和(自身を含む): 70445376

約数和(自身を除く): 49506816

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 32, 34, 40, 48, 51, 60, 64, 68, 80, 85, 96, 102, 120, 136, 160, 170, 192, 204, 240, 255, 272, 320, 340, 408, 480, 510, 544, 680, 816, 960, 1020, 1088, 1283, 1360, 1632, 2040, 2566, 2720, 3264, 3849, 4080, 5132, 5440, 6415, 7698, 8160, 10264, 12830, 15396, 16320, 19245, 20528, 21811, 25660, 30792, 38490, 41056, 43622, 51320, 61584, 65433, 76980, 82112, 87244, 102640, 109055, 123168, 130866, 153960, 174488, 205280, 218110, 246336, 261732, 307920, 327165, 348976, 410560, 436220, 523464, 615840, 654330, 697952, 872440, 1046928, 1231680, 1308660, 1395904, 1744880, 2093856, 2617320, 3489760, 4187712, 5234640, 6979520, 10469280, 20938560]

約数ペア:

[(1, 20938560), (2, 10469280), (3, 6979520), (4, 5234640), (5, 4187712), (6, 3489760), (8, 2617320), (10, 2093856), (12, 1744880), (15, 1395904), (16, 1308660), (17, 1231680), (20, 1046928), (24, 872440), (30, 697952), (32, 654330), (34, 615840), (40, 523464), (48, 436220), (51, 410560), (60, 348976), (64, 327165), (68, 307920), (80, 261732), (85, 246336), (96, 218110), (102, 205280), (120, 174488), (136, 153960), (160, 130866), (170, 123168), (192, 109055), (204, 102640), (240, 87244), (255, 82112), (272, 76980), (320, 65433), (340, 61584), (408, 51320), (480, 43622), (510, 41056), (544, 38490), (680, 30792), (816, 25660), (960, 21811), (1020, 20528), (1088, 19245), (1283, 16320), (1360, 15396), (1632, 12830), (2040, 10264), (2566, 8160), (2720, 7698), (3264, 6415), (3849, 5440), (4080, 5132)]