28378880

素因数分解:

$2^8\times 5^1\times {\mathrm{22171}}^1$

素因数の和:22192

約数の個数: 36

約数和(自身を含む): 67979352

約数和(自身を除く): 39600472

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 22171, 44342, 88684, 110855, 177368, 221710, 354736, 443420, 709472, 886840, 1418944, 1773680, 2837888, 3547360, 5675776, 7094720, 14189440, 28378880]

約数ペア:

[(1, 28378880), (2, 14189440), (4, 7094720), (5, 5675776), (8, 3547360), (10, 2837888), (16, 1773680), (20, 1418944), (32, 886840), (40, 709472), (64, 443420), (80, 354736), (128, 221710), (160, 177368), (256, 110855), (320, 88684), (640, 44342), (1280, 22171)]