68769040

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{19991}}^1$

素因数の和:20047

約数の個数: 40

約数和(自身を含む): 163614528

約数和(自身を除く): 94845488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 19991, 39982, 79964, 99955, 159928, 199910, 319856, 399820, 799640, 859613, 1599280, 1719226, 3438452, 4298065, 6876904, 8596130, 13753808, 17192260, 34384520, 68769040]

約数ペア:

[(1, 68769040), (2, 34384520), (4, 17192260), (5, 13753808), (8, 8596130), (10, 6876904), (16, 4298065), (20, 3438452), (40, 1719226), (43, 1599280), (80, 859613), (86, 799640), (172, 399820), (215, 319856), (344, 199910), (430, 159928), (688, 99955), (860, 79964), (1720, 39982), (3440, 19991)]