67312640

素因数分解:

$2^{10}\times 5^1\times {\mathrm{13147}}^1$

素因数の和:13172

約数の個数: 44

約数和(自身を含む): 161483736

約数和(自身を除く): 94171096

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 5120, 13147, 26294, 52588, 65735, 105176, 131470, 210352, 262940, 420704, 525880, 841408, 1051760, 1682816, 2103520, 3365632, 4207040, 6731264, 8414080, 13462528, 16828160, 33656320, 67312640]

約数ペア:

[(1, 67312640), (2, 33656320), (4, 16828160), (5, 13462528), (8, 8414080), (10, 6731264), (16, 4207040), (20, 3365632), (32, 2103520), (40, 1682816), (64, 1051760), (80, 841408), (128, 525880), (160, 420704), (256, 262940), (320, 210352), (512, 131470), (640, 105176), (1024, 65735), (1280, 52588), (2560, 26294), (5120, 13147)]