21954880

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1$

素因数の和:216

約数の個数: 112

約数和(自身を含む): 57790080

約数和(自身を除く): 35835200

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 23, 32, 38, 40, 46, 64, 76, 80, 92, 95, 115, 152, 157, 160, 184, 190, 230, 304, 314, 320, 368, 380, 437, 460, 608, 628, 736, 760, 785, 874, 920, 1216, 1256, 1472, 1520, 1570, 1748, 1840, 2185, 2512, 2983, 3040, 3140, 3496, 3611, 3680, 4370, 5024, 5966, 6080, 6280, 6992, 7222, 7360, 8740, 10048, 11932, 12560, 13984, 14444, 14915, 17480, 18055, 23864, 25120, 27968, 28888, 29830, 34960, 36110, 47728, 50240, 57776, 59660, 68609, 69920, 72220, 95456, 115552, 119320, 137218, 139840, 144440, 190912, 231104, 238640, 274436, 288880, 343045, 477280, 548872, 577760, 686090, 954560, 1097744, 1155520, 1372180, 2195488, 2744360, 4390976, 5488720, 10977440, 21954880]

約数ペア:

[(1, 21954880), (2, 10977440), (4, 5488720), (5, 4390976), (8, 2744360), (10, 2195488), (16, 1372180), (19, 1155520), (20, 1097744), (23, 954560), (32, 686090), (38, 577760), (40, 548872), (46, 477280), (64, 343045), (76, 288880), (80, 274436), (92, 238640), (95, 231104), (115, 190912), (152, 144440), (157, 139840), (160, 137218), (184, 119320), (190, 115552), (230, 95456), (304, 72220), (314, 69920), (320, 68609), (368, 59660), (380, 57776), (437, 50240), (460, 47728), (608, 36110), (628, 34960), (736, 29830), (760, 28888), (785, 27968), (874, 25120), (920, 23864), (1216, 18055), (1256, 17480), (1472, 14915), (1520, 14444), (1570, 13984), (1748, 12560), (1840, 11932), (2185, 10048), (2512, 8740), (2983, 7360), (3040, 7222), (3140, 6992), (3496, 6280), (3611, 6080), (3680, 5966), (4370, 5024)]