278320

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{71}}^1$

素因数の和:98

約数の個数: 60

約数和(自身を含む): 763344

約数和(自身を除く): 485024

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 71, 80, 98, 112, 140, 142, 196, 245, 280, 284, 355, 392, 490, 497, 560, 568, 710, 784, 980, 994, 1136, 1420, 1960, 1988, 2485, 2840, 3479, 3920, 3976, 4970, 5680, 6958, 7952, 9940, 13916, 17395, 19880, 27832, 34790, 39760, 55664, 69580, 139160, 278320]

約数ペア:

[(1, 278320), (2, 139160), (4, 69580), (5, 55664), (7, 39760), (8, 34790), (10, 27832), (14, 19880), (16, 17395), (20, 13916), (28, 9940), (35, 7952), (40, 6958), (49, 5680), (56, 4970), (70, 3976), (71, 3920), (80, 3479), (98, 2840), (112, 2485), (140, 1988), (142, 1960), (196, 1420), (245, 1136), (280, 994), (284, 980), (355, 784), (392, 710), (490, 568), (497, 560)]