2763320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:228

約数の個数: 64

約数和(自身を含む): 7257600

約数和(自身を除く): 4494280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 71, 139, 140, 142, 278, 280, 284, 355, 497, 556, 568, 695, 710, 973, 994, 1112, 1390, 1420, 1946, 1988, 2485, 2780, 2840, 3892, 3976, 4865, 4970, 5560, 7784, 9730, 9869, 9940, 19460, 19738, 19880, 38920, 39476, 49345, 69083, 78952, 98690, 138166, 197380, 276332, 345415, 394760, 552664, 690830, 1381660, 2763320]

約数ペア:

[(1, 2763320), (2, 1381660), (4, 690830), (5, 552664), (7, 394760), (8, 345415), (10, 276332), (14, 197380), (20, 138166), (28, 98690), (35, 78952), (40, 69083), (56, 49345), (70, 39476), (71, 38920), (139, 19880), (140, 19738), (142, 19460), (278, 9940), (280, 9869), (284, 9730), (355, 7784), (497, 5560), (556, 4970), (568, 4865), (695, 3976), (710, 3892), (973, 2840), (994, 2780), (1112, 2485), (1390, 1988), (1420, 1946)]