61278440

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1549}}^1$

素因数の和:1626

約数の個数: 64

約数和(自身を含む): 147312000

約数和(自身を除く): 86033560

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 43, 46, 86, 92, 115, 172, 184, 215, 230, 344, 430, 460, 860, 920, 989, 1549, 1720, 1978, 3098, 3956, 4945, 6196, 7745, 7912, 9890, 12392, 15490, 19780, 30980, 35627, 39560, 61960, 66607, 71254, 133214, 142508, 178135, 266428, 285016, 333035, 356270, 532856, 666070, 712540, 1332140, 1425080, 1531961, 2664280, 3063922, 6127844, 7659805, 12255688, 15319610, 30639220, 61278440]

約数ペア:

[(1, 61278440), (2, 30639220), (4, 15319610), (5, 12255688), (8, 7659805), (10, 6127844), (20, 3063922), (23, 2664280), (40, 1531961), (43, 1425080), (46, 1332140), (86, 712540), (92, 666070), (115, 532856), (172, 356270), (184, 333035), (215, 285016), (230, 266428), (344, 178135), (430, 142508), (460, 133214), (860, 71254), (920, 66607), (989, 61960), (1549, 39560), (1720, 35627), (1978, 30980), (3098, 19780), (3956, 15490), (4945, 12392), (6196, 9890), (7745, 7912)]