31397120

素因数分解:

$2^8\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1291}}^1$

素因数の和:1331

約数の個数: 72

約数和(自身を含む): 79225440

約数和(自身を除く): 47828320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 256, 304, 320, 380, 608, 640, 760, 1216, 1280, 1291, 1520, 2432, 2582, 3040, 4864, 5164, 6080, 6455, 10328, 12160, 12910, 20656, 24320, 24529, 25820, 41312, 49058, 51640, 82624, 98116, 103280, 122645, 165248, 196232, 206560, 245290, 330496, 392464, 413120, 490580, 784928, 826240, 981160, 1569856, 1652480, 1962320, 3139712, 3924640, 6279424, 7849280, 15698560, 31397120]

約数ペア:

[(1, 31397120), (2, 15698560), (4, 7849280), (5, 6279424), (8, 3924640), (10, 3139712), (16, 1962320), (19, 1652480), (20, 1569856), (32, 981160), (38, 826240), (40, 784928), (64, 490580), (76, 413120), (80, 392464), (95, 330496), (128, 245290), (152, 206560), (160, 196232), (190, 165248), (256, 122645), (304, 103280), (320, 98116), (380, 82624), (608, 51640), (640, 49058), (760, 41312), (1216, 25820), (1280, 24529), (1291, 24320), (1520, 20656), (2432, 12910), (2582, 12160), (3040, 10328), (4864, 6455), (5164, 6080)]