20937130

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:175

約数の個数: 64

約数和(自身を含む): 42197760

約数和(自身を除く): 21260630

約数列:

[1, 2, 5, 10, 23, 29, 43, 46, 58, 73, 86, 115, 145, 146, 215, 230, 290, 365, 430, 667, 730, 989, 1247, 1334, 1679, 1978, 2117, 2494, 3139, 3335, 3358, 4234, 4945, 6235, 6278, 6670, 8395, 9890, 10585, 12470, 15695, 16790, 21170, 28681, 31390, 48691, 57362, 72197, 91031, 97382, 143405, 144394, 182062, 243455, 286810, 360985, 455155, 486910, 721970, 910310, 2093713, 4187426, 10468565, 20937130]

約数ペア:

[(1, 20937130), (2, 10468565), (5, 4187426), (10, 2093713), (23, 910310), (29, 721970), (43, 486910), (46, 455155), (58, 360985), (73, 286810), (86, 243455), (115, 182062), (145, 144394), (146, 143405), (215, 97382), (230, 91031), (290, 72197), (365, 57362), (430, 48691), (667, 31390), (730, 28681), (989, 21170), (1247, 16790), (1334, 15695), (1679, 12470), (1978, 10585), (2117, 9890), (2494, 8395), (3139, 6670), (3335, 6278), (3358, 6235), (4234, 4945)]