16412020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{257}}^1$

素因数の和:400

約数の個数: 48

約数和(自身を含む): 36062208

約数和(自身を除く): 19650188

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 103, 124, 155, 206, 257, 310, 412, 514, 515, 620, 1028, 1030, 1285, 2060, 2570, 3193, 5140, 6386, 7967, 12772, 15934, 15965, 26471, 31868, 31930, 39835, 52942, 63860, 79670, 105884, 132355, 159340, 264710, 529420, 820601, 1641202, 3282404, 4103005, 8206010, 16412020]

約数ペア:

[(1, 16412020), (2, 8206010), (4, 4103005), (5, 3282404), (10, 1641202), (20, 820601), (31, 529420), (62, 264710), (103, 159340), (124, 132355), (155, 105884), (206, 79670), (257, 63860), (310, 52942), (412, 39835), (514, 31930), (515, 31868), (620, 26471), (1028, 15965), (1030, 15934), (1285, 12772), (2060, 7967), (2570, 6386), (3193, 5140)]