19832320

素因数分解:

$2^9\times 5^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1$

素因数の和:211

約数の個数: 80

約数和(自身を含む): 48711168

約数和(自身を除く): 28878848

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 127, 128, 160, 244, 254, 256, 305, 320, 488, 508, 512, 610, 635, 640, 976, 1016, 1220, 1270, 1280, 1952, 2032, 2440, 2540, 2560, 3904, 4064, 4880, 5080, 7747, 7808, 8128, 9760, 10160, 15494, 15616, 16256, 19520, 20320, 30988, 31232, 32512, 38735, 39040, 40640, 61976, 65024, 77470, 78080, 81280, 123952, 154940, 156160, 162560, 247904, 309880, 325120, 495808, 619760, 991616, 1239520, 1983232, 2479040, 3966464, 4958080, 9916160, 19832320]

約数ペア:

[(1, 19832320), (2, 9916160), (4, 4958080), (5, 3966464), (8, 2479040), (10, 1983232), (16, 1239520), (20, 991616), (32, 619760), (40, 495808), (61, 325120), (64, 309880), (80, 247904), (122, 162560), (127, 156160), (128, 154940), (160, 123952), (244, 81280), (254, 78080), (256, 77470), (305, 65024), (320, 61976), (488, 40640), (508, 39040), (512, 38735), (610, 32512), (635, 31232), (640, 30988), (976, 20320), (1016, 19520), (1220, 16256), (1270, 15616), (1280, 15494), (1952, 10160), (2032, 9760), (2440, 8128), (2540, 7808), (2560, 7747), (3904, 5080), (4064, 4880)]