68688640

素因数分解:

$2^8\times 5^1\times {\mathrm{103}}^1\times {\mathrm{521}}^1$

素因数の和:645

約数の個数: 72

約数和(自身を含む): 166447008

約数和(自身を除く): 97758368

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 103, 128, 160, 206, 256, 320, 412, 515, 521, 640, 824, 1030, 1042, 1280, 1648, 2060, 2084, 2605, 3296, 4120, 4168, 5210, 6592, 8240, 8336, 10420, 13184, 16480, 16672, 20840, 26368, 32960, 33344, 41680, 53663, 65920, 66688, 83360, 107326, 131840, 133376, 166720, 214652, 268315, 333440, 429304, 536630, 666880, 858608, 1073260, 1717216, 2146520, 3434432, 4293040, 6868864, 8586080, 13737728, 17172160, 34344320, 68688640]

約数ペア:

[(1, 68688640), (2, 34344320), (4, 17172160), (5, 13737728), (8, 8586080), (10, 6868864), (16, 4293040), (20, 3434432), (32, 2146520), (40, 1717216), (64, 1073260), (80, 858608), (103, 666880), (128, 536630), (160, 429304), (206, 333440), (256, 268315), (320, 214652), (412, 166720), (515, 133376), (521, 131840), (640, 107326), (824, 83360), (1030, 66688), (1042, 65920), (1280, 53663), (1648, 41680), (2060, 33344), (2084, 32960), (2605, 26368), (3296, 20840), (4120, 16672), (4168, 16480), (5210, 13184), (6592, 10420), (8240, 8336)]