127642580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{2467}}^1$

素因数の和:2688

約数の個数: 48

約数和(自身を含む): 290236800

約数和(自身を除く): 162594220

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 199, 260, 398, 796, 995, 1990, 2467, 2587, 3980, 4934, 5174, 9868, 10348, 12335, 12935, 24670, 25870, 32071, 49340, 51740, 64142, 128284, 160355, 320710, 490933, 641420, 981866, 1963732, 2454665, 4909330, 6382129, 9818660, 12764258, 25528516, 31910645, 63821290, 127642580]

約数ペア:

[(1, 127642580), (2, 63821290), (4, 31910645), (5, 25528516), (10, 12764258), (13, 9818660), (20, 6382129), (26, 4909330), (52, 2454665), (65, 1963732), (130, 981866), (199, 641420), (260, 490933), (398, 320710), (796, 160355), (995, 128284), (1990, 64142), (2467, 51740), (2587, 49340), (3980, 32071), (4934, 25870), (5174, 24670), (9868, 12935), (10348, 12335)]