25357960

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{641}}^1$

素因数の和:718

約数の個数: 64

約数和(自身を含む): 61015680

約数和(自身を除く): 35657720

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 43, 46, 86, 92, 115, 172, 184, 215, 230, 344, 430, 460, 641, 860, 920, 989, 1282, 1720, 1978, 2564, 3205, 3956, 4945, 5128, 6410, 7912, 9890, 12820, 14743, 19780, 25640, 27563, 29486, 39560, 55126, 58972, 73715, 110252, 117944, 137815, 147430, 220504, 275630, 294860, 551260, 589720, 633949, 1102520, 1267898, 2535796, 3169745, 5071592, 6339490, 12678980, 25357960]

約数ペア:

[(1, 25357960), (2, 12678980), (4, 6339490), (5, 5071592), (8, 3169745), (10, 2535796), (20, 1267898), (23, 1102520), (40, 633949), (43, 589720), (46, 551260), (86, 294860), (92, 275630), (115, 220504), (172, 147430), (184, 137815), (215, 117944), (230, 110252), (344, 73715), (430, 58972), (460, 55126), (641, 39560), (860, 29486), (920, 27563), (989, 25640), (1282, 19780), (1720, 14743), (1978, 12820), (2564, 9890), (3205, 7912), (3956, 6410), (4945, 5128)]