81278120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{2399}}^1$

素因数の和:2439

約数の個数: 96

約数和(自身を含む): 229824000

約数和(自身を除く): 148545880

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 121, 140, 154, 220, 242, 280, 308, 385, 440, 484, 605, 616, 770, 847, 968, 1210, 1540, 1694, 2399, 2420, 3080, 3388, 4235, 4798, 4840, 6776, 8470, 9596, 11995, 16793, 16940, 19192, 23990, 26389, 33586, 33880, 47980, 52778, 67172, 83965, 95960, 105556, 131945, 134344, 167930, 184723, 211112, 263890, 290279, 335860, 369446, 527780, 580558, 671720, 738892, 923615, 1055560, 1161116, 1451395, 1477784, 1847230, 2031953, 2322232, 2902790, 3694460, 4063906, 5805580, 7388920, 8127812, 10159765, 11611160, 16255624, 20319530, 40639060, 81278120]

約数ペア:

[(1, 81278120), (2, 40639060), (4, 20319530), (5, 16255624), (7, 11611160), (8, 10159765), (10, 8127812), (11, 7388920), (14, 5805580), (20, 4063906), (22, 3694460), (28, 2902790), (35, 2322232), (40, 2031953), (44, 1847230), (55, 1477784), (56, 1451395), (70, 1161116), (77, 1055560), (88, 923615), (110, 738892), (121, 671720), (140, 580558), (154, 527780), (220, 369446), (242, 335860), (280, 290279), (308, 263890), (385, 211112), (440, 184723), (484, 167930), (605, 134344), (616, 131945), (770, 105556), (847, 95960), (968, 83965), (1210, 67172), (1540, 52778), (1694, 47980), (2399, 33880), (2420, 33586), (3080, 26389), (3388, 23990), (4235, 19192), (4798, 16940), (4840, 16793), (6776, 11995), (8470, 9596)]