20647320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{2357}}^1$

素因数の和:2444

約数の個数: 64

約数和(自身を含む): 62817120

約数和(自身を除く): 42169800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 73, 120, 146, 219, 292, 365, 438, 584, 730, 876, 1095, 1460, 1752, 2190, 2357, 2920, 4380, 4714, 7071, 8760, 9428, 11785, 14142, 18856, 23570, 28284, 35355, 47140, 56568, 70710, 94280, 141420, 172061, 282840, 344122, 516183, 688244, 860305, 1032366, 1376488, 1720610, 2064732, 2580915, 3441220, 4129464, 5161830, 6882440, 10323660, 20647320]

約数ペア:

[(1, 20647320), (2, 10323660), (3, 6882440), (4, 5161830), (5, 4129464), (6, 3441220), (8, 2580915), (10, 2064732), (12, 1720610), (15, 1376488), (20, 1032366), (24, 860305), (30, 688244), (40, 516183), (60, 344122), (73, 282840), (120, 172061), (146, 141420), (219, 94280), (292, 70710), (365, 56568), (438, 47140), (584, 35355), (730, 28284), (876, 23570), (1095, 18856), (1460, 14142), (1752, 11785), (2190, 9428), (2357, 8760), (2920, 7071), (4380, 4714)]