639230640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{2663461}}^1$

素因数の和:2663477

約数の個数: 40

約数和(自身を含む): 1981615728

約数和(自身を除く): 1342385088

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 2663461, 5326922, 7990383, 10653844, 13317305, 15980766, 21307688, 26634610, 31961532, 39951915, 42615376, 53269220, 63923064, 79903830, 106538440, 127846128, 159807660, 213076880, 319615320, 639230640]

約数ペア:

[(1, 639230640), (2, 319615320), (3, 213076880), (4, 159807660), (5, 127846128), (6, 106538440), (8, 79903830), (10, 63923064), (12, 53269220), (15, 42615376), (16, 39951915), (20, 31961532), (24, 26634610), (30, 21307688), (40, 15980766), (48, 13317305), (60, 10653844), (80, 7990383), (120, 5326922), (240, 2663461)]