1270295560

素因数分解:

$2^3\times 5^1\times {\mathrm{491}}^1\times {\mathrm{64679}}^1$

素因数の和:65181

約数の個数: 32

約数和(自身を含む): 2864030400

約数和(自身を除く): 1593734840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 491, 982, 1964, 2455, 3928, 4910, 9820, 19640, 64679, 129358, 258716, 323395, 517432, 646790, 1293580, 2587160, 31757389, 63514778, 127029556, 158786945, 254059112, 317573890, 635147780, 1270295560]

約数ペア:

[(1, 1270295560), (2, 635147780), (4, 317573890), (5, 254059112), (8, 158786945), (10, 127029556), (20, 63514778), (40, 31757389), (491, 2587160), (982, 1293580), (1964, 646790), (2455, 517432), (3928, 323395), (4910, 258716), (9820, 129358), (19640, 64679)]