21699120

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{3931}}^1$

素因数の和:3970

約数の個数: 80

約数和(自身を含む): 70209792

約数和(自身を除く): 48510672

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 40, 46, 48, 60, 69, 80, 92, 115, 120, 138, 184, 230, 240, 276, 345, 368, 460, 552, 690, 920, 1104, 1380, 1840, 2760, 3931, 5520, 7862, 11793, 15724, 19655, 23586, 31448, 39310, 47172, 58965, 62896, 78620, 90413, 94344, 117930, 157240, 180826, 188688, 235860, 271239, 314480, 361652, 452065, 471720, 542478, 723304, 904130, 943440, 1084956, 1356195, 1446608, 1808260, 2169912, 2712390, 3616520, 4339824, 5424780, 7233040, 10849560, 21699120]

約数ペア:

[(1, 21699120), (2, 10849560), (3, 7233040), (4, 5424780), (5, 4339824), (6, 3616520), (8, 2712390), (10, 2169912), (12, 1808260), (15, 1446608), (16, 1356195), (20, 1084956), (23, 943440), (24, 904130), (30, 723304), (40, 542478), (46, 471720), (48, 452065), (60, 361652), (69, 314480), (80, 271239), (92, 235860), (115, 188688), (120, 180826), (138, 157240), (184, 117930), (230, 94344), (240, 90413), (276, 78620), (345, 62896), (368, 58965), (460, 47172), (552, 39310), (690, 31448), (920, 23586), (1104, 19655), (1380, 15724), (1840, 11793), (2760, 7862), (3931, 5520)]