98778880

素因数分解:

$2^8\times 5^1\times {\mathrm{77171}}^1$

素因数の和:77192

約数の個数: 36

約数和(自身を含む): 236609352

約数和(自身を除く): 137830472

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 77171, 154342, 308684, 385855, 617368, 771710, 1234736, 1543420, 2469472, 3086840, 4938944, 6173680, 9877888, 12347360, 19755776, 24694720, 49389440, 98778880]

約数ペア:

[(1, 98778880), (2, 49389440), (4, 24694720), (5, 19755776), (8, 12347360), (10, 9877888), (16, 6173680), (20, 4938944), (32, 3086840), (40, 2469472), (64, 1543420), (80, 1234736), (128, 771710), (160, 617368), (256, 385855), (320, 308684), (640, 154342), (1280, 77171)]