78637780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{2003}}^1$

素因数の和:2176

約数の個数: 48

約数和(自身を含む): 179109504

約数和(自身を除く): 100471724

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 151, 260, 302, 604, 755, 1510, 1963, 2003, 3020, 3926, 4006, 7852, 8012, 9815, 10015, 19630, 20030, 26039, 39260, 40060, 52078, 104156, 130195, 260390, 302453, 520780, 604906, 1209812, 1512265, 3024530, 3931889, 6049060, 7863778, 15727556, 19659445, 39318890, 78637780]

約数ペア:

[(1, 78637780), (2, 39318890), (4, 19659445), (5, 15727556), (10, 7863778), (13, 6049060), (20, 3931889), (26, 3024530), (52, 1512265), (65, 1209812), (130, 604906), (151, 520780), (260, 302453), (302, 260390), (604, 130195), (755, 104156), (1510, 52078), (1963, 40060), (2003, 39260), (3020, 26039), (3926, 20030), (4006, 19630), (7852, 10015), (8012, 9815)]