127842920

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1\times {\mathrm{569}}^1$

素因数の和:758

約数の個数: 64

約数和(自身を含む): 297334800

約数和(自身を除く): 169491880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 137, 164, 205, 274, 328, 410, 548, 569, 685, 820, 1096, 1138, 1370, 1640, 2276, 2740, 2845, 4552, 5480, 5617, 5690, 11234, 11380, 22468, 22760, 23329, 28085, 44936, 46658, 56170, 77953, 93316, 112340, 116645, 155906, 186632, 224680, 233290, 311812, 389765, 466580, 623624, 779530, 933160, 1559060, 3118120, 3196073, 6392146, 12784292, 15980365, 25568584, 31960730, 63921460, 127842920]

約数ペア:

[(1, 127842920), (2, 63921460), (4, 31960730), (5, 25568584), (8, 15980365), (10, 12784292), (20, 6392146), (40, 3196073), (41, 3118120), (82, 1559060), (137, 933160), (164, 779530), (205, 623624), (274, 466580), (328, 389765), (410, 311812), (548, 233290), (569, 224680), (685, 186632), (820, 155906), (1096, 116645), (1138, 112340), (1370, 93316), (1640, 77953), (2276, 56170), (2740, 46658), (2845, 44936), (4552, 28085), (5480, 23329), (5617, 22760), (5690, 22468), (11234, 11380)]