19687040

素因数分解:

$2^7\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1619}}^1$

素因数の和:1657

約数の個数: 64

約数和(自身を含む): 49572000

約数和(自身を除く): 29884960

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 304, 320, 380, 608, 640, 760, 1216, 1520, 1619, 2432, 3040, 3238, 6080, 6476, 8095, 12160, 12952, 16190, 25904, 30761, 32380, 51808, 61522, 64760, 103616, 123044, 129520, 153805, 207232, 246088, 259040, 307610, 492176, 518080, 615220, 984352, 1036160, 1230440, 1968704, 2460880, 3937408, 4921760, 9843520, 19687040]

約数ペア:

[(1, 19687040), (2, 9843520), (4, 4921760), (5, 3937408), (8, 2460880), (10, 1968704), (16, 1230440), (19, 1036160), (20, 984352), (32, 615220), (38, 518080), (40, 492176), (64, 307610), (76, 259040), (80, 246088), (95, 207232), (128, 153805), (152, 129520), (160, 123044), (190, 103616), (304, 64760), (320, 61522), (380, 51808), (608, 32380), (640, 30761), (760, 25904), (1216, 16190), (1520, 12952), (1619, 12160), (2432, 8095), (3040, 6476), (3238, 6080)]