20959680

素因数分解:

$2^6\times 3^1\times 5^1\times 7^1\times {\mathrm{3119}}^1$

素因数の和:3146

約数の個数: 112

約数和(自身を含む): 76078080

約数和(自身を除く): 55118400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 140, 160, 168, 192, 210, 224, 240, 280, 320, 336, 420, 448, 480, 560, 672, 840, 960, 1120, 1344, 1680, 2240, 3119, 3360, 6238, 6720, 9357, 12476, 15595, 18714, 21833, 24952, 31190, 37428, 43666, 46785, 49904, 62380, 65499, 74856, 87332, 93570, 99808, 109165, 124760, 130998, 149712, 174664, 187140, 199616, 218330, 249520, 261996, 299424, 327495, 349328, 374280, 436660, 499040, 523992, 598848, 654990, 698656, 748560, 873320, 998080, 1047984, 1309980, 1397312, 1497120, 1746640, 2095968, 2619960, 2994240, 3493280, 4191936, 5239920, 6986560, 10479840, 20959680]

約数ペア:

[(1, 20959680), (2, 10479840), (3, 6986560), (4, 5239920), (5, 4191936), (6, 3493280), (7, 2994240), (8, 2619960), (10, 2095968), (12, 1746640), (14, 1497120), (15, 1397312), (16, 1309980), (20, 1047984), (21, 998080), (24, 873320), (28, 748560), (30, 698656), (32, 654990), (35, 598848), (40, 523992), (42, 499040), (48, 436660), (56, 374280), (60, 349328), (64, 327495), (70, 299424), (80, 261996), (84, 249520), (96, 218330), (105, 199616), (112, 187140), (120, 174664), (140, 149712), (160, 130998), (168, 124760), (192, 109165), (210, 99808), (224, 93570), (240, 87332), (280, 74856), (320, 65499), (336, 62380), (420, 49904), (448, 46785), (480, 43666), (560, 37428), (672, 31190), (840, 24952), (960, 21833), (1120, 18714), (1344, 15595), (1680, 12476), (2240, 9357), (3119, 6720), (3360, 6238)]