16661520

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{317}}^1$

素因数の和:409

約数の個数: 120

約数和(自身を含む): 56900376

約数和(自身を除く): 40238856

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 73, 80, 90, 120, 144, 146, 180, 219, 240, 292, 317, 360, 365, 438, 584, 634, 657, 720, 730, 876, 951, 1095, 1168, 1268, 1314, 1460, 1585, 1752, 1902, 2190, 2536, 2628, 2853, 2920, 3170, 3285, 3504, 3804, 4380, 4755, 5072, 5256, 5706, 5840, 6340, 6570, 7608, 8760, 9510, 10512, 11412, 12680, 13140, 14265, 15216, 17520, 19020, 22824, 23141, 25360, 26280, 28530, 38040, 45648, 46282, 52560, 57060, 69423, 76080, 92564, 114120, 115705, 138846, 185128, 208269, 228240, 231410, 277692, 347115, 370256, 416538, 462820, 555384, 694230, 833076, 925640, 1041345, 1110768, 1388460, 1666152, 1851280, 2082690, 2776920, 3332304, 4165380, 5553840, 8330760, 16661520]

約数ペア:

[(1, 16661520), (2, 8330760), (3, 5553840), (4, 4165380), (5, 3332304), (6, 2776920), (8, 2082690), (9, 1851280), (10, 1666152), (12, 1388460), (15, 1110768), (16, 1041345), (18, 925640), (20, 833076), (24, 694230), (30, 555384), (36, 462820), (40, 416538), (45, 370256), (48, 347115), (60, 277692), (72, 231410), (73, 228240), (80, 208269), (90, 185128), (120, 138846), (144, 115705), (146, 114120), (180, 92564), (219, 76080), (240, 69423), (292, 57060), (317, 52560), (360, 46282), (365, 45648), (438, 38040), (584, 28530), (634, 26280), (657, 25360), (720, 23141), (730, 22824), (876, 19020), (951, 17520), (1095, 15216), (1168, 14265), (1268, 13140), (1314, 12680), (1460, 11412), (1585, 10512), (1752, 9510), (1902, 8760), (2190, 7608), (2536, 6570), (2628, 6340), (2853, 5840), (2920, 5706), (3170, 5256), (3285, 5072), (3504, 4755), (3804, 4380)]