388282760

素因数分解:

$2^3\times 5^1\times {\mathrm{313}}^1\times {\mathrm{31013}}^1$

素因数の和:31337

約数の個数: 32

約数和(自身を含む): 876455640

約数和(自身を除く): 488172880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 313, 626, 1252, 1565, 2504, 3130, 6260, 12520, 31013, 62026, 124052, 155065, 248104, 310130, 620260, 1240520, 9707069, 19414138, 38828276, 48535345, 77656552, 97070690, 194141380, 388282760]

約数ペア:

[(1, 388282760), (2, 194141380), (4, 97070690), (5, 77656552), (8, 48535345), (10, 38828276), (20, 19414138), (40, 9707069), (313, 1240520), (626, 620260), (1252, 310130), (1565, 248104), (2504, 155065), (3130, 124052), (6260, 62026), (12520, 31013)]