87819520

素因数分解:

$2^8\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1$

素因数の和:220

約数の個数: 144

約数和(自身を含む): 232525440

約数和(自身を除く): 144705920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 23, 32, 38, 40, 46, 64, 76, 80, 92, 95, 115, 128, 152, 157, 160, 184, 190, 230, 256, 304, 314, 320, 368, 380, 437, 460, 608, 628, 640, 736, 760, 785, 874, 920, 1216, 1256, 1280, 1472, 1520, 1570, 1748, 1840, 2185, 2432, 2512, 2944, 2983, 3040, 3140, 3496, 3611, 3680, 4370, 4864, 5024, 5888, 5966, 6080, 6280, 6992, 7222, 7360, 8740, 10048, 11932, 12160, 12560, 13984, 14444, 14720, 14915, 17480, 18055, 20096, 23864, 24320, 25120, 27968, 28888, 29440, 29830, 34960, 36110, 40192, 47728, 50240, 55936, 57776, 59660, 68609, 69920, 72220, 95456, 100480, 111872, 115552, 119320, 137218, 139840, 144440, 190912, 200960, 231104, 238640, 274436, 279680, 288880, 343045, 381824, 462208, 477280, 548872, 559360, 577760, 686090, 763648, 924416, 954560, 1097744, 1155520, 1372180, 1909120, 2195488, 2311040, 2744360, 3818240, 4390976, 4622080, 5488720, 8781952, 10977440, 17563904, 21954880, 43909760, 87819520]

約数ペア:

[(1, 87819520), (2, 43909760), (4, 21954880), (5, 17563904), (8, 10977440), (10, 8781952), (16, 5488720), (19, 4622080), (20, 4390976), (23, 3818240), (32, 2744360), (38, 2311040), (40, 2195488), (46, 1909120), (64, 1372180), (76, 1155520), (80, 1097744), (92, 954560), (95, 924416), (115, 763648), (128, 686090), (152, 577760), (157, 559360), (160, 548872), (184, 477280), (190, 462208), (230, 381824), (256, 343045), (304, 288880), (314, 279680), (320, 274436), (368, 238640), (380, 231104), (437, 200960), (460, 190912), (608, 144440), (628, 139840), (640, 137218), (736, 119320), (760, 115552), (785, 111872), (874, 100480), (920, 95456), (1216, 72220), (1256, 69920), (1280, 68609), (1472, 59660), (1520, 57776), (1570, 55936), (1748, 50240), (1840, 47728), (2185, 40192), (2432, 36110), (2512, 34960), (2944, 29830), (2983, 29440), (3040, 28888), (3140, 27968), (3496, 25120), (3611, 24320), (3680, 23864), (4370, 20096), (4864, 18055), (5024, 17480), (5888, 14915), (5966, 14720), (6080, 14444), (6280, 13984), (6992, 12560), (7222, 12160), (7360, 11932), (8740, 10048)]