72628720

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^2\times {\mathrm{491}}^1$

素因数の和:590

約数の個数: 60

約数和(自身を含む): 173232216

約数和(自身を除く): 100603496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 491, 688, 860, 982, 1720, 1849, 1964, 2455, 3440, 3698, 3928, 4910, 7396, 7856, 9245, 9820, 14792, 18490, 19640, 21113, 29584, 36980, 39280, 42226, 73960, 84452, 105565, 147920, 168904, 211130, 337808, 422260, 844520, 907859, 1689040, 1815718, 3631436, 4539295, 7262872, 9078590, 14525744, 18157180, 36314360, 72628720]

約数ペア:

[(1, 72628720), (2, 36314360), (4, 18157180), (5, 14525744), (8, 9078590), (10, 7262872), (16, 4539295), (20, 3631436), (40, 1815718), (43, 1689040), (80, 907859), (86, 844520), (172, 422260), (215, 337808), (344, 211130), (430, 168904), (491, 147920), (688, 105565), (860, 84452), (982, 73960), (1720, 42226), (1849, 39280), (1964, 36980), (2455, 29584), (3440, 21113), (3698, 19640), (3928, 18490), (4910, 14792), (7396, 9820), (7856, 9245)]