90281200

素因数分解:

$2^4\times 5^2\times {\mathrm{79}}^1\times {\mathrm{2857}}^1$

素因数の和:2954

約数の個数: 60

約数和(自身を含む): 219723040

約数和(自身を除く): 129441840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 79, 80, 100, 158, 200, 316, 395, 400, 632, 790, 1264, 1580, 1975, 2857, 3160, 3950, 5714, 6320, 7900, 11428, 14285, 15800, 22856, 28570, 31600, 45712, 57140, 71425, 114280, 142850, 225703, 228560, 285700, 451406, 571400, 902812, 1128515, 1142800, 1805624, 2257030, 3611248, 4514060, 5642575, 9028120, 11285150, 18056240, 22570300, 45140600, 90281200]

約数ペア:

[(1, 90281200), (2, 45140600), (4, 22570300), (5, 18056240), (8, 11285150), (10, 9028120), (16, 5642575), (20, 4514060), (25, 3611248), (40, 2257030), (50, 1805624), (79, 1142800), (80, 1128515), (100, 902812), (158, 571400), (200, 451406), (316, 285700), (395, 228560), (400, 225703), (632, 142850), (790, 114280), (1264, 71425), (1580, 57140), (1975, 45712), (2857, 31600), (3160, 28570), (3950, 22856), (5714, 15800), (6320, 14285), (7900, 11428)]