20147642228

素因数分解:

$2^2\times 7^2\times {\mathrm{41}}^1\times {\mathrm{661}}^1\times {\mathrm{3793}}^1$

素因数の和:4513

約数の個数: 72

約数和(自身を含む): 42089862024

約数和(自身を除く): 21942219796

約数列:

[1, 2, 4, 7, 14, 28, 41, 49, 82, 98, 164, 196, 287, 574, 661, 1148, 1322, 2009, 2644, 3793, 4018, 4627, 7586, 8036, 9254, 15172, 18508, 26551, 27101, 32389, 53102, 54202, 64778, 106204, 108404, 129556, 155513, 185857, 189707, 311026, 371714, 379414, 622052, 743428, 758828, 1088591, 1327949, 2177182, 2507173, 2655898, 4354364, 5014346, 5311796, 7620137, 10028692, 15240274, 17550211, 30480548, 35100422, 70200844, 102794093, 122851477, 205588186, 245702954, 411176372, 491405908, 719558651, 1439117302, 2878234604, 5036910557, 10073821114, 20147642228]

約数ペア:

[(1, 20147642228), (2, 10073821114), (4, 5036910557), (7, 2878234604), (14, 1439117302), (28, 719558651), (41, 491405908), (49, 411176372), (82, 245702954), (98, 205588186), (164, 122851477), (196, 102794093), (287, 70200844), (574, 35100422), (661, 30480548), (1148, 17550211), (1322, 15240274), (2009, 10028692), (2644, 7620137), (3793, 5311796), (4018, 5014346), (4627, 4354364), (7586, 2655898), (8036, 2507173), (9254, 2177182), (15172, 1327949), (18508, 1088591), (26551, 758828), (27101, 743428), (32389, 622052), (53102, 379414), (54202, 371714), (64778, 311026), (106204, 189707), (108404, 185857), (129556, 155513)]