68485880

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{929}}^1$

素因数の和:1056

約数の個数: 64

約数和(自身を含む): 164052000

約数和(自身を除く): 95566120

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 97, 152, 190, 194, 380, 388, 485, 760, 776, 929, 970, 1843, 1858, 1940, 3686, 3716, 3880, 4645, 7372, 7432, 9215, 9290, 14744, 17651, 18430, 18580, 35302, 36860, 37160, 70604, 73720, 88255, 90113, 141208, 176510, 180226, 353020, 360452, 450565, 706040, 720904, 901130, 1712147, 1802260, 3424294, 3604520, 6848588, 8560735, 13697176, 17121470, 34242940, 68485880]

約数ペア:

[(1, 68485880), (2, 34242940), (4, 17121470), (5, 13697176), (8, 8560735), (10, 6848588), (19, 3604520), (20, 3424294), (38, 1802260), (40, 1712147), (76, 901130), (95, 720904), (97, 706040), (152, 450565), (190, 360452), (194, 353020), (380, 180226), (388, 176510), (485, 141208), (760, 90113), (776, 88255), (929, 73720), (970, 70604), (1843, 37160), (1858, 36860), (1940, 35302), (3686, 18580), (3716, 18430), (3880, 17651), (4645, 14744), (7372, 9290), (7432, 9215)]