81643996

素因数分解:

$2^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{229}}^1$

素因数の和:371

約数の個数: 72

約数和(自身を含む): 178400880

約数和(自身を除く): 96756884

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 49, 68, 98, 107, 119, 196, 214, 229, 238, 428, 458, 476, 749, 833, 916, 1498, 1603, 1666, 1819, 2996, 3206, 3332, 3638, 3893, 5243, 6412, 7276, 7786, 10486, 11221, 12733, 15572, 20972, 22442, 24503, 25466, 27251, 44884, 49006, 50932, 54502, 89131, 98012, 109004, 171521, 178262, 190757, 343042, 356524, 381514, 416551, 686084, 763028, 833102, 1200647, 1666204, 2401294, 2915857, 4802588, 5831714, 11663428, 20410999, 40821998, 81643996]

約数ペア:

[(1, 81643996), (2, 40821998), (4, 20410999), (7, 11663428), (14, 5831714), (17, 4802588), (28, 2915857), (34, 2401294), (49, 1666204), (68, 1200647), (98, 833102), (107, 763028), (119, 686084), (196, 416551), (214, 381514), (229, 356524), (238, 343042), (428, 190757), (458, 178262), (476, 171521), (749, 109004), (833, 98012), (916, 89131), (1498, 54502), (1603, 50932), (1666, 49006), (1819, 44884), (2996, 27251), (3206, 25466), (3332, 24503), (3638, 22442), (3893, 20972), (5243, 15572), (6412, 12733), (7276, 11221), (7786, 10486)]