81677610

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{18521}}^1$

素因数の和:18548

約数の個数: 72

約数和(自身を含む): 247046436

約数和(自身を除く): 165368826

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 49, 63, 70, 90, 98, 105, 126, 147, 210, 245, 294, 315, 441, 490, 630, 735, 882, 1470, 2205, 4410, 18521, 37042, 55563, 92605, 111126, 129647, 166689, 185210, 259294, 277815, 333378, 388941, 555630, 648235, 777882, 833445, 907529, 1166823, 1296470, 1666890, 1815058, 1944705, 2333646, 2722587, 3889410, 4537645, 5445174, 5834115, 8167761, 9075290, 11668230, 13612935, 16335522, 27225870, 40838805, 81677610]

約数ペア:

[(1, 81677610), (2, 40838805), (3, 27225870), (5, 16335522), (6, 13612935), (7, 11668230), (9, 9075290), (10, 8167761), (14, 5834115), (15, 5445174), (18, 4537645), (21, 3889410), (30, 2722587), (35, 2333646), (42, 1944705), (45, 1815058), (49, 1666890), (63, 1296470), (70, 1166823), (90, 907529), (98, 833445), (105, 777882), (126, 648235), (147, 555630), (210, 388941), (245, 333378), (294, 277815), (315, 259294), (441, 185210), (490, 166689), (630, 129647), (735, 111126), (882, 92605), (1470, 55563), (2205, 37042), (4410, 18521)]