2964778840

素因数分解:

$2^3\times 5^1\times {\mathrm{641}}^1\times {\mathrm{115631}}^1$

素因数の和:116283

約数の個数: 32

約数和(自身を含む): 6681216960

約数和(自身を除く): 3716438120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 641, 1282, 2564, 3205, 5128, 6410, 12820, 25640, 115631, 231262, 462524, 578155, 925048, 1156310, 2312620, 4625240, 74119471, 148238942, 296477884, 370597355, 592955768, 741194710, 1482389420, 2964778840]

約数ペア:

[(1, 2964778840), (2, 1482389420), (4, 741194710), (5, 592955768), (8, 370597355), (10, 296477884), (20, 148238942), (40, 74119471), (641, 4625240), (1282, 2312620), (2564, 1156310), (3205, 925048), (5128, 578155), (6410, 462524), (12820, 231262), (25640, 115631)]