64647020

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{313}}^1\times {\mathrm{449}}^1$

素因数の和:794

約数の個数: 48

約数和(自身を含む): 142430400

約数和(自身を除く): 77783380

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 313, 449, 460, 626, 898, 1252, 1565, 1796, 2245, 3130, 4490, 6260, 7199, 8980, 10327, 14398, 20654, 28796, 35995, 41308, 51635, 71990, 103270, 140537, 143980, 206540, 281074, 562148, 702685, 1405370, 2810740, 3232351, 6464702, 12929404, 16161755, 32323510, 64647020]

約数ペア:

[(1, 64647020), (2, 32323510), (4, 16161755), (5, 12929404), (10, 6464702), (20, 3232351), (23, 2810740), (46, 1405370), (92, 702685), (115, 562148), (230, 281074), (313, 206540), (449, 143980), (460, 140537), (626, 103270), (898, 71990), (1252, 51635), (1565, 41308), (1796, 35995), (2245, 28796), (3130, 20654), (4490, 14398), (6260, 10327), (7199, 8980)]