20955840

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{263}}^1$

素因数の和:366

約数の個数: 112

約数和(自身を含む): 67592448

約数和(自身を除く): 46636608

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 83, 96, 120, 160, 166, 192, 240, 249, 263, 320, 332, 415, 480, 498, 526, 664, 789, 830, 960, 996, 1052, 1245, 1315, 1328, 1578, 1660, 1992, 2104, 2490, 2630, 2656, 3156, 3320, 3945, 3984, 4208, 4980, 5260, 5312, 6312, 6640, 7890, 7968, 8416, 9960, 10520, 12624, 13280, 15780, 15936, 16832, 19920, 21040, 21829, 25248, 26560, 31560, 39840, 42080, 43658, 50496, 63120, 65487, 79680, 84160, 87316, 109145, 126240, 130974, 174632, 218290, 252480, 261948, 327435, 349264, 436580, 523896, 654870, 698528, 873160, 1047792, 1309740, 1397056, 1746320, 2095584, 2619480, 3492640, 4191168, 5238960, 6985280, 10477920, 20955840]

約数ペア:

[(1, 20955840), (2, 10477920), (3, 6985280), (4, 5238960), (5, 4191168), (6, 3492640), (8, 2619480), (10, 2095584), (12, 1746320), (15, 1397056), (16, 1309740), (20, 1047792), (24, 873160), (30, 698528), (32, 654870), (40, 523896), (48, 436580), (60, 349264), (64, 327435), (80, 261948), (83, 252480), (96, 218290), (120, 174632), (160, 130974), (166, 126240), (192, 109145), (240, 87316), (249, 84160), (263, 79680), (320, 65487), (332, 63120), (415, 50496), (480, 43658), (498, 42080), (526, 39840), (664, 31560), (789, 26560), (830, 25248), (960, 21829), (996, 21040), (1052, 19920), (1245, 16832), (1315, 15936), (1328, 15780), (1578, 13280), (1660, 12624), (1992, 10520), (2104, 9960), (2490, 8416), (2630, 7968), (2656, 7890), (3156, 6640), (3320, 6312), (3945, 5312), (3984, 5260), (4208, 4980)]