4461440

素因数分解:

$2^7\times 5^1\times {\mathrm{6971}}^1$

素因数の和:6990

約数の個数: 32

約数和(自身を含む): 10667160

約数和(自身を除く): 6205720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 6971, 13942, 27884, 34855, 55768, 69710, 111536, 139420, 223072, 278840, 446144, 557680, 892288, 1115360, 2230720, 4461440]

約数ペア:

[(1, 4461440), (2, 2230720), (4, 1115360), (5, 892288), (8, 557680), (10, 446144), (16, 278840), (20, 223072), (32, 139420), (40, 111536), (64, 69710), (80, 55768), (128, 34855), (160, 27884), (320, 13942), (640, 6971)]