80405640

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{31907}}^1$

素因数の和:31931

約数の個数: 96

約数和(自身を含む): 298658880

約数和(自身を除く): 218253240

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 63, 70, 72, 84, 90, 105, 120, 126, 140, 168, 180, 210, 252, 280, 315, 360, 420, 504, 630, 840, 1260, 2520, 31907, 63814, 95721, 127628, 159535, 191442, 223349, 255256, 287163, 319070, 382884, 446698, 478605, 574326, 638140, 670047, 765768, 893396, 957210, 1116745, 1148652, 1276280, 1340094, 1435815, 1786792, 1914420, 2010141, 2233490, 2297304, 2680188, 2871630, 3350235, 3828840, 4020282, 4466980, 5360376, 5743260, 6700470, 8040564, 8933960, 10050705, 11486520, 13400940, 16081128, 20101410, 26801880, 40202820, 80405640]

約数ペア:

[(1, 80405640), (2, 40202820), (3, 26801880), (4, 20101410), (5, 16081128), (6, 13400940), (7, 11486520), (8, 10050705), (9, 8933960), (10, 8040564), (12, 6700470), (14, 5743260), (15, 5360376), (18, 4466980), (20, 4020282), (21, 3828840), (24, 3350235), (28, 2871630), (30, 2680188), (35, 2297304), (36, 2233490), (40, 2010141), (42, 1914420), (45, 1786792), (56, 1435815), (60, 1340094), (63, 1276280), (70, 1148652), (72, 1116745), (84, 957210), (90, 893396), (105, 765768), (120, 670047), (126, 638140), (140, 574326), (168, 478605), (180, 446698), (210, 382884), (252, 319070), (280, 287163), (315, 255256), (360, 223349), (420, 191442), (504, 159535), (630, 127628), (840, 95721), (1260, 63814), (2520, 31907)]