18990080

素因数分解:

$2^{10}\times 5^1\times {\mathrm{3709}}^1$

素因数の和:3734

約数の個数: 44

約数和(自身を含む): 45566220

約数和(自身を除く): 26576140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 3709, 5120, 7418, 14836, 18545, 29672, 37090, 59344, 74180, 118688, 148360, 237376, 296720, 474752, 593440, 949504, 1186880, 1899008, 2373760, 3798016, 4747520, 9495040, 18990080]

約数ペア:

[(1, 18990080), (2, 9495040), (4, 4747520), (5, 3798016), (8, 2373760), (10, 1899008), (16, 1186880), (20, 949504), (32, 593440), (40, 474752), (64, 296720), (80, 237376), (128, 148360), (160, 118688), (256, 74180), (320, 59344), (512, 37090), (640, 29672), (1024, 18545), (1280, 14836), (2560, 7418), (3709, 5120)]