16238440

素因数分解:

$2^3\times 5^1\times {\mathrm{313}}^1\times {\mathrm{1297}}^1$

素因数の和:1621

約数の個数: 32

約数和(自身を含む): 36681480

約数和(自身を除く): 20443040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 313, 626, 1252, 1297, 1565, 2504, 2594, 3130, 5188, 6260, 6485, 10376, 12520, 12970, 25940, 51880, 405961, 811922, 1623844, 2029805, 3247688, 4059610, 8119220, 16238440]

約数ペア:

[(1, 16238440), (2, 8119220), (4, 4059610), (5, 3247688), (8, 2029805), (10, 1623844), (20, 811922), (40, 405961), (313, 51880), (626, 25940), (1252, 12970), (1297, 12520), (1565, 10376), (2504, 6485), (2594, 6260), (3130, 5188)]