87918080

素因数分解:

$2^9\times 5^1\times {\mathrm{61}}^1\times {\mathrm{563}}^1$

素因数の和:647

約数の個数: 80

約数和(自身を含む): 214633584

約数和(自身を除く): 126715504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 128, 160, 244, 256, 305, 320, 488, 512, 563, 610, 640, 976, 1126, 1220, 1280, 1952, 2252, 2440, 2560, 2815, 3904, 4504, 4880, 5630, 7808, 9008, 9760, 11260, 15616, 18016, 19520, 22520, 31232, 34343, 36032, 39040, 45040, 68686, 72064, 78080, 90080, 137372, 144128, 156160, 171715, 180160, 274744, 288256, 343430, 360320, 549488, 686860, 720640, 1098976, 1373720, 1441280, 2197952, 2747440, 4395904, 5494880, 8791808, 10989760, 17583616, 21979520, 43959040, 87918080]

約数ペア:

[(1, 87918080), (2, 43959040), (4, 21979520), (5, 17583616), (8, 10989760), (10, 8791808), (16, 5494880), (20, 4395904), (32, 2747440), (40, 2197952), (61, 1441280), (64, 1373720), (80, 1098976), (122, 720640), (128, 686860), (160, 549488), (244, 360320), (256, 343430), (305, 288256), (320, 274744), (488, 180160), (512, 171715), (563, 156160), (610, 144128), (640, 137372), (976, 90080), (1126, 78080), (1220, 72064), (1280, 68686), (1952, 45040), (2252, 39040), (2440, 36032), (2560, 34343), (2815, 31232), (3904, 22520), (4504, 19520), (4880, 18016), (5630, 15616), (7808, 11260), (9008, 9760)]