1898480

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1249}}^1$

素因数の和:1281

約数の個数: 40

約数和(自身を含む): 4650000

約数和(自身を除く): 2751520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1249, 1520, 2498, 4996, 6245, 9992, 12490, 19984, 23731, 24980, 47462, 49960, 94924, 99920, 118655, 189848, 237310, 379696, 474620, 949240, 1898480]

約数ペア:

[(1, 1898480), (2, 949240), (4, 474620), (5, 379696), (8, 237310), (10, 189848), (16, 118655), (19, 99920), (20, 94924), (38, 49960), (40, 47462), (76, 24980), (80, 23731), (95, 19984), (152, 12490), (190, 9992), (304, 6245), (380, 4996), (760, 2498), (1249, 1520)]