20611360

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{239}}^1$

素因数の和:279

約数の個数: 144

約数和(自身を含む): 62052480

約数和(自身を除く): 41441120

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 49, 55, 56, 70, 77, 80, 88, 98, 110, 112, 140, 154, 160, 176, 196, 220, 224, 239, 245, 280, 308, 352, 385, 392, 440, 478, 490, 539, 560, 616, 770, 784, 880, 956, 980, 1078, 1120, 1195, 1232, 1540, 1568, 1673, 1760, 1912, 1960, 2156, 2390, 2464, 2629, 2695, 3080, 3346, 3824, 3920, 4312, 4780, 5258, 5390, 6160, 6692, 7648, 7840, 8365, 8624, 9560, 10516, 10780, 11711, 12320, 13145, 13384, 16730, 17248, 18403, 19120, 21032, 21560, 23422, 26290, 26768, 33460, 36806, 38240, 42064, 43120, 46844, 52580, 53536, 58555, 66920, 73612, 84128, 86240, 92015, 93688, 105160, 117110, 128821, 133840, 147224, 184030, 187376, 210320, 234220, 257642, 267680, 294448, 368060, 374752, 420640, 468440, 515284, 588896, 644105, 736120, 936880, 1030568, 1288210, 1472240, 1873760, 2061136, 2576420, 2944480, 4122272, 5152840, 10305680, 20611360]

約数ペア:

[(1, 20611360), (2, 10305680), (4, 5152840), (5, 4122272), (7, 2944480), (8, 2576420), (10, 2061136), (11, 1873760), (14, 1472240), (16, 1288210), (20, 1030568), (22, 936880), (28, 736120), (32, 644105), (35, 588896), (40, 515284), (44, 468440), (49, 420640), (55, 374752), (56, 368060), (70, 294448), (77, 267680), (80, 257642), (88, 234220), (98, 210320), (110, 187376), (112, 184030), (140, 147224), (154, 133840), (160, 128821), (176, 117110), (196, 105160), (220, 93688), (224, 92015), (239, 86240), (245, 84128), (280, 73612), (308, 66920), (352, 58555), (385, 53536), (392, 52580), (440, 46844), (478, 43120), (490, 42064), (539, 38240), (560, 36806), (616, 33460), (770, 26768), (784, 26290), (880, 23422), (956, 21560), (980, 21032), (1078, 19120), (1120, 18403), (1195, 17248), (1232, 16730), (1540, 13384), (1568, 13145), (1673, 12320), (1760, 11711), (1912, 10780), (1960, 10516), (2156, 9560), (2390, 8624), (2464, 8365), (2629, 7840), (2695, 7648), (3080, 6692), (3346, 6160), (3824, 5390), (3920, 5258), (4312, 4780)]