278327440

素因数分解:

$2^4\times 5^1\times {\mathrm{971}}^1\times {\mathrm{3583}}^1$

素因数の和:4567

約数の個数: 40

約数和(自身を含む): 647958528

約数和(自身を除く): 369631088

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 971, 1942, 3583, 3884, 4855, 7166, 7768, 9710, 14332, 15536, 17915, 19420, 28664, 35830, 38840, 57328, 71660, 77680, 143320, 286640, 3479093, 6958186, 13916372, 17395465, 27832744, 34790930, 55665488, 69581860, 139163720, 278327440]

約数ペア:

[(1, 278327440), (2, 139163720), (4, 69581860), (5, 55665488), (8, 34790930), (10, 27832744), (16, 17395465), (20, 13916372), (40, 6958186), (80, 3479093), (971, 286640), (1942, 143320), (3583, 77680), (3884, 71660), (4855, 57328), (7166, 38840), (7768, 35830), (9710, 28664), (14332, 19420), (15536, 17915)]