8000040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{163}}^1\times {\mathrm{409}}^1$

素因数の和:586

約数の個数: 64

約数和(自身を含む): 24206400

約数和(自身を除く): 16206360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 163, 326, 409, 489, 652, 815, 818, 978, 1227, 1304, 1630, 1636, 1956, 2045, 2445, 2454, 3260, 3272, 3912, 4090, 4890, 4908, 6135, 6520, 8180, 9780, 9816, 12270, 16360, 19560, 24540, 49080, 66667, 133334, 200001, 266668, 333335, 400002, 533336, 666670, 800004, 1000005, 1333340, 1600008, 2000010, 2666680, 4000020, 8000040]

約数ペア:

[(1, 8000040), (2, 4000020), (3, 2666680), (4, 2000010), (5, 1600008), (6, 1333340), (8, 1000005), (10, 800004), (12, 666670), (15, 533336), (20, 400002), (24, 333335), (30, 266668), (40, 200001), (60, 133334), (120, 66667), (163, 49080), (326, 24540), (409, 19560), (489, 16360), (652, 12270), (815, 9816), (818, 9780), (978, 8180), (1227, 6520), (1304, 6135), (1630, 4908), (1636, 4890), (1956, 4090), (2045, 3912), (2445, 3272), (2454, 3260)]