20632640

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{151}}^1$

素因数の和:236

約数の個数: 112

約数和(自身を含む): 57448704

約数和(自身を除く): 36816064

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 61, 64, 70, 80, 112, 122, 140, 151, 160, 224, 244, 280, 302, 305, 320, 427, 448, 488, 560, 604, 610, 755, 854, 976, 1057, 1120, 1208, 1220, 1510, 1708, 1952, 2114, 2135, 2240, 2416, 2440, 3020, 3416, 3904, 4228, 4270, 4832, 4880, 5285, 6040, 6832, 8456, 8540, 9211, 9664, 9760, 10570, 12080, 13664, 16912, 17080, 18422, 19520, 21140, 24160, 27328, 33824, 34160, 36844, 42280, 46055, 48320, 64477, 67648, 68320, 73688, 84560, 92110, 128954, 136640, 147376, 169120, 184220, 257908, 294752, 322385, 338240, 368440, 515816, 589504, 644770, 736880, 1031632, 1289540, 1473760, 2063264, 2579080, 2947520, 4126528, 5158160, 10316320, 20632640]

約数ペア:

[(1, 20632640), (2, 10316320), (4, 5158160), (5, 4126528), (7, 2947520), (8, 2579080), (10, 2063264), (14, 1473760), (16, 1289540), (20, 1031632), (28, 736880), (32, 644770), (35, 589504), (40, 515816), (56, 368440), (61, 338240), (64, 322385), (70, 294752), (80, 257908), (112, 184220), (122, 169120), (140, 147376), (151, 136640), (160, 128954), (224, 92110), (244, 84560), (280, 73688), (302, 68320), (305, 67648), (320, 64477), (427, 48320), (448, 46055), (488, 42280), (560, 36844), (604, 34160), (610, 33824), (755, 27328), (854, 24160), (976, 21140), (1057, 19520), (1120, 18422), (1208, 17080), (1220, 16912), (1510, 13664), (1708, 12080), (1952, 10570), (2114, 9760), (2135, 9664), (2240, 9211), (2416, 8540), (2440, 8456), (3020, 6832), (3416, 6040), (3904, 5285), (4228, 4880), (4270, 4832)]