21424960

素因数分解:

$2^6\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:152

約数の個数: 112

約数和(自身を含む): 55302912

約数和(自身を除く): 33877952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 41, 46, 64, 71, 80, 82, 92, 115, 142, 160, 164, 184, 205, 230, 284, 320, 328, 355, 368, 410, 460, 568, 656, 710, 736, 820, 920, 943, 1136, 1312, 1420, 1472, 1633, 1640, 1840, 1886, 2272, 2624, 2840, 2911, 3266, 3280, 3680, 3772, 4544, 4715, 5680, 5822, 6532, 6560, 7360, 7544, 8165, 9430, 11360, 11644, 13064, 13120, 14555, 15088, 16330, 18860, 22720, 23288, 26128, 29110, 30176, 32660, 37720, 46576, 52256, 58220, 60352, 65320, 66953, 75440, 93152, 104512, 116440, 130640, 133906, 150880, 186304, 232880, 261280, 267812, 301760, 334765, 465760, 522560, 535624, 669530, 931520, 1071248, 1339060, 2142496, 2678120, 4284992, 5356240, 10712480, 21424960]

約数ペア:

[(1, 21424960), (2, 10712480), (4, 5356240), (5, 4284992), (8, 2678120), (10, 2142496), (16, 1339060), (20, 1071248), (23, 931520), (32, 669530), (40, 535624), (41, 522560), (46, 465760), (64, 334765), (71, 301760), (80, 267812), (82, 261280), (92, 232880), (115, 186304), (142, 150880), (160, 133906), (164, 130640), (184, 116440), (205, 104512), (230, 93152), (284, 75440), (320, 66953), (328, 65320), (355, 60352), (368, 58220), (410, 52256), (460, 46576), (568, 37720), (656, 32660), (710, 30176), (736, 29110), (820, 26128), (920, 23288), (943, 22720), (1136, 18860), (1312, 16330), (1420, 15088), (1472, 14555), (1633, 13120), (1640, 13064), (1840, 11644), (1886, 11360), (2272, 9430), (2624, 8165), (2840, 7544), (2911, 7360), (3266, 6560), (3280, 6532), (3680, 5822), (3772, 5680), (4544, 4715)]