39203960

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{991}}^1$

素因数の和:1068

約数の個数: 64

約数和(自身を含む): 94279680

約数和(自身を除く): 55075720

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, 991, 1720, 1978, 1982, 3956, 3964, 4945, 4955, 7912, 7928, 9890, 9910, 19780, 19820, 22793, 39560, 39640, 42613, 45586, 85226, 91172, 113965, 170452, 182344, 213065, 227930, 340904, 426130, 455860, 852260, 911720, 980099, 1704520, 1960198, 3920396, 4900495, 7840792, 9800990, 19601980, 39203960]

約数ペア:

[(1, 39203960), (2, 19601980), (4, 9800990), (5, 7840792), (8, 4900495), (10, 3920396), (20, 1960198), (23, 1704520), (40, 980099), (43, 911720), (46, 852260), (86, 455860), (92, 426130), (115, 340904), (172, 227930), (184, 213065), (215, 182344), (230, 170452), (344, 113965), (430, 91172), (460, 85226), (860, 45586), (920, 42613), (989, 39640), (991, 39560), (1720, 22793), (1978, 19820), (1982, 19780), (3956, 9910), (3964, 9890), (4945, 7928), (4955, 7912)]