156720400780

素因数分解:

$2^2\times 5^1\times {\mathrm{263}}^1\times {\mathrm{4091}}^1\times {\mathrm{7283}}^1$

素因数の和:11646

約数の個数: 48

約数和(自身を含む): 330490347264

約数和(自身を除く): 173769946484

約数列:

[1, 2, 4, 5, 10, 20, 263, 526, 1052, 1315, 2630, 4091, 5260, 7283, 8182, 14566, 16364, 20455, 29132, 36415, 40910, 72830, 81820, 145660, 1075933, 1915429, 2151866, 3830858, 4303732, 5379665, 7661716, 9577145, 10759330, 19154290, 21518660, 29794753, 38308580, 59589506, 119179012, 148973765, 297947530, 595895060, 7836020039, 15672040078, 31344080156, 39180100195, 78360200390, 156720400780]

約数ペア:

[(1, 156720400780), (2, 78360200390), (4, 39180100195), (5, 31344080156), (10, 15672040078), (20, 7836020039), (263, 595895060), (526, 297947530), (1052, 148973765), (1315, 119179012), (2630, 59589506), (4091, 38308580), (5260, 29794753), (7283, 21518660), (8182, 19154290), (14566, 10759330), (16364, 9577145), (20455, 7661716), (29132, 5379665), (36415, 4303732), (40910, 3830858), (72830, 2151866), (81820, 1915429), (145660, 1075933)]