21377120

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1$

素因数の和:232

約数の個数: 96

約数和(自身を含む): 54468288

約数和(自身を除く): 33091168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 37, 40, 46, 74, 80, 92, 115, 148, 157, 160, 184, 185, 230, 296, 314, 368, 370, 460, 592, 628, 736, 740, 785, 851, 920, 1184, 1256, 1480, 1570, 1702, 1840, 2512, 2960, 3140, 3404, 3611, 3680, 4255, 5024, 5809, 5920, 6280, 6808, 7222, 8510, 11618, 12560, 13616, 14444, 17020, 18055, 23236, 25120, 27232, 28888, 29045, 34040, 36110, 46472, 57776, 58090, 68080, 72220, 92944, 115552, 116180, 133607, 136160, 144440, 185888, 232360, 267214, 288880, 464720, 534428, 577760, 668035, 929440, 1068856, 1336070, 2137712, 2672140, 4275424, 5344280, 10688560, 21377120]

約数ペア:

[(1, 21377120), (2, 10688560), (4, 5344280), (5, 4275424), (8, 2672140), (10, 2137712), (16, 1336070), (20, 1068856), (23, 929440), (32, 668035), (37, 577760), (40, 534428), (46, 464720), (74, 288880), (80, 267214), (92, 232360), (115, 185888), (148, 144440), (157, 136160), (160, 133607), (184, 116180), (185, 115552), (230, 92944), (296, 72220), (314, 68080), (368, 58090), (370, 57776), (460, 46472), (592, 36110), (628, 34040), (736, 29045), (740, 28888), (785, 27232), (851, 25120), (920, 23236), (1184, 18055), (1256, 17020), (1480, 14444), (1570, 13616), (1702, 12560), (1840, 11618), (2512, 8510), (2960, 7222), (3140, 6808), (3404, 6280), (3611, 5920), (3680, 5809), (4255, 5024)]