64837280

素因数分解:

$2^5\times 5^1\times {\mathrm{311}}^1\times {\mathrm{1303}}^1$

素因数の和:1629

約数の個数: 48

約数和(自身を含む): 153788544

約数和(自身を除く): 88951264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 311, 622, 1244, 1303, 1555, 2488, 2606, 3110, 4976, 5212, 6220, 6515, 9952, 10424, 12440, 13030, 20848, 24880, 26060, 41696, 49760, 52120, 104240, 208480, 405233, 810466, 1620932, 2026165, 3241864, 4052330, 6483728, 8104660, 12967456, 16209320, 32418640, 64837280]

約数ペア:

[(1, 64837280), (2, 32418640), (4, 16209320), (5, 12967456), (8, 8104660), (10, 6483728), (16, 4052330), (20, 3241864), (32, 2026165), (40, 1620932), (80, 810466), (160, 405233), (311, 208480), (622, 104240), (1244, 52120), (1303, 49760), (1555, 41696), (2488, 26060), (2606, 24880), (3110, 20848), (4976, 13030), (5212, 12440), (6220, 10424), (6515, 9952)]