281570220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{19801}}^1$

素因数の和:19895

約数の個数: 72

約数和(自身を含む): 864951360

約数和(自身を除く): 583381140

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 79, 90, 158, 180, 237, 316, 395, 474, 711, 790, 948, 1185, 1422, 1580, 2370, 2844, 3555, 4740, 7110, 14220, 19801, 39602, 59403, 79204, 99005, 118806, 178209, 198010, 237612, 297015, 356418, 396020, 594030, 712836, 891045, 1188060, 1564279, 1782090, 3128558, 3564180, 4692837, 6257116, 7821395, 9385674, 14078511, 15642790, 18771348, 23464185, 28157022, 31285580, 46928370, 56314044, 70392555, 93856740, 140785110, 281570220]

約数ペア:

[(1, 281570220), (2, 140785110), (3, 93856740), (4, 70392555), (5, 56314044), (6, 46928370), (9, 31285580), (10, 28157022), (12, 23464185), (15, 18771348), (18, 15642790), (20, 14078511), (30, 9385674), (36, 7821395), (45, 6257116), (60, 4692837), (79, 3564180), (90, 3128558), (158, 1782090), (180, 1564279), (237, 1188060), (316, 891045), (395, 712836), (474, 594030), (711, 396020), (790, 356418), (948, 297015), (1185, 237612), (1422, 198010), (1580, 178209), (2370, 118806), (2844, 99005), (3555, 79204), (4740, 59403), (7110, 39602), (14220, 19801)]