18988970

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{271}}^1$

素因数の和:316

約数の個数: 96

約数和(自身を含む): 46884096

約数和(自身を除く): 27895126

約数列:

[1, 2, 5, 7, 10, 11, 13, 14, 22, 26, 35, 49, 55, 65, 70, 77, 91, 98, 110, 130, 143, 154, 182, 245, 271, 286, 385, 455, 490, 539, 542, 637, 715, 770, 910, 1001, 1078, 1274, 1355, 1430, 1897, 2002, 2695, 2710, 2981, 3185, 3523, 3794, 5005, 5390, 5962, 6370, 7007, 7046, 9485, 10010, 13279, 14014, 14905, 17615, 18970, 20867, 24661, 26558, 29810, 35035, 35230, 38753, 41734, 49322, 66395, 70070, 77506, 104335, 123305, 132790, 146069, 172627, 193765, 208670, 246610, 271271, 292138, 345254, 387530, 542542, 730345, 863135, 1356355, 1460690, 1726270, 1898897, 2712710, 3797794, 9494485, 18988970]

約数ペア:

[(1, 18988970), (2, 9494485), (5, 3797794), (7, 2712710), (10, 1898897), (11, 1726270), (13, 1460690), (14, 1356355), (22, 863135), (26, 730345), (35, 542542), (49, 387530), (55, 345254), (65, 292138), (70, 271271), (77, 246610), (91, 208670), (98, 193765), (110, 172627), (130, 146069), (143, 132790), (154, 123305), (182, 104335), (245, 77506), (271, 70070), (286, 66395), (385, 49322), (455, 41734), (490, 38753), (539, 35230), (542, 35035), (637, 29810), (715, 26558), (770, 24661), (910, 20867), (1001, 18970), (1078, 17615), (1274, 14905), (1355, 14014), (1430, 13279), (1897, 10010), (2002, 9485), (2695, 7046), (2710, 7007), (2981, 6370), (3185, 5962), (3523, 5390), (3794, 5005)]