1392640

素因数分解:

$2^{14}\times 5^1\times {\mathrm{17}}^1$

素因数の和:50

約数の個数: 60

約数和(自身を含む): 3538836

約数和(自身を除く): 2146196

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 256, 272, 320, 340, 512, 544, 640, 680, 1024, 1088, 1280, 1360, 2048, 2176, 2560, 2720, 4096, 4352, 5120, 5440, 8192, 8704, 10240, 10880, 16384, 17408, 20480, 21760, 34816, 40960, 43520, 69632, 81920, 87040, 139264, 174080, 278528, 348160, 696320, 1392640]

約数ペア:

[(1, 1392640), (2, 696320), (4, 348160), (5, 278528), (8, 174080), (10, 139264), (16, 87040), (17, 81920), (20, 69632), (32, 43520), (34, 40960), (40, 34816), (64, 21760), (68, 20480), (80, 17408), (85, 16384), (128, 10880), (136, 10240), (160, 8704), (170, 8192), (256, 5440), (272, 5120), (320, 4352), (340, 4096), (512, 2720), (544, 2560), (640, 2176), (680, 2048), (1024, 1360), (1088, 1280)]