319583780

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{3083}}^1$

素因数の和:3236

約数の個数: 48

約数和(自身を含む): 690125184

約数和(自身を除く): 370541404

約数列:

[1, 2, 4, 5, 10, 20, 71, 73, 142, 146, 284, 292, 355, 365, 710, 730, 1420, 1460, 3083, 5183, 6166, 10366, 12332, 15415, 20732, 25915, 30830, 51830, 61660, 103660, 218893, 225059, 437786, 450118, 875572, 900236, 1094465, 1125295, 2188930, 2250590, 4377860, 4501180, 15979189, 31958378, 63916756, 79895945, 159791890, 319583780]

約数ペア:

[(1, 319583780), (2, 159791890), (4, 79895945), (5, 63916756), (10, 31958378), (20, 15979189), (71, 4501180), (73, 4377860), (142, 2250590), (146, 2188930), (284, 1125295), (292, 1094465), (355, 900236), (365, 875572), (710, 450118), (730, 437786), (1420, 225059), (1460, 218893), (3083, 103660), (5183, 61660), (6166, 51830), (10366, 30830), (12332, 25915), (15415, 20732)]