15721321020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{197}}^1\times {\mathrm{1330061}}^1$

素因数の和:1330270

約数の個数: 48

約数和(自身を含む): 44243182368

約数和(自身を除く): 28521861348

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 197, 394, 591, 788, 985, 1182, 1970, 2364, 2955, 3940, 5910, 11820, 1330061, 2660122, 3990183, 5320244, 6650305, 7980366, 13300610, 15960732, 19950915, 26601220, 39901830, 79803660, 262022017, 524044034, 786066051, 1048088068, 1310110085, 1572132102, 2620220170, 3144264204, 3930330255, 5240440340, 7860660510, 15721321020]

約数ペア:

[(1, 15721321020), (2, 7860660510), (3, 5240440340), (4, 3930330255), (5, 3144264204), (6, 2620220170), (10, 1572132102), (12, 1310110085), (15, 1048088068), (20, 786066051), (30, 524044034), (60, 262022017), (197, 79803660), (394, 39901830), (591, 26601220), (788, 19950915), (985, 15960732), (1182, 13300610), (1970, 7980366), (2364, 6650305), (2955, 5320244), (3940, 3990183), (5910, 2660122), (11820, 1330061)]