20123300080

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3467}}^1\times {\mathrm{5581}}^1$

素因数の和:9074

約数の個数: 80

約数和(自身を含む): 50409211104

約数和(自身を除く): 30285911024

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 3467, 5581, 6934, 11162, 13868, 17335, 22324, 27736, 27905, 34670, 44648, 45071, 55472, 55810, 69340, 72553, 89296, 90142, 111620, 138680, 145106, 180284, 223240, 225355, 277360, 290212, 360568, 362765, 446480, 450710, 580424, 721136, 725530, 901420, 1160848, 1451060, 1802840, 2902120, 3605680, 5804240, 19349327, 38698654, 77397308, 96746635, 154794616, 193493270, 251541251, 309589232, 386986540, 503082502, 773973080, 1006165004, 1257706255, 1547946160, 2012330008, 2515412510, 4024660016, 5030825020, 10061650040, 20123300080]

約数ペア:

[(1, 20123300080), (2, 10061650040), (4, 5030825020), (5, 4024660016), (8, 2515412510), (10, 2012330008), (13, 1547946160), (16, 1257706255), (20, 1006165004), (26, 773973080), (40, 503082502), (52, 386986540), (65, 309589232), (80, 251541251), (104, 193493270), (130, 154794616), (208, 96746635), (260, 77397308), (520, 38698654), (1040, 19349327), (3467, 5804240), (5581, 3605680), (6934, 2902120), (11162, 1802840), (13868, 1451060), (17335, 1160848), (22324, 901420), (27736, 725530), (27905, 721136), (34670, 580424), (44648, 450710), (45071, 446480), (55472, 362765), (55810, 360568), (69340, 290212), (72553, 277360), (89296, 225355), (90142, 223240), (111620, 180284), (138680, 145106)]