65189720

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1\times {\mathrm{251}}^1$

素因数の和:456

約数の個数: 64

約数和(自身を含む): 151683840

約数和(自身を除く): 86494120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 151, 172, 215, 251, 302, 344, 430, 502, 604, 755, 860, 1004, 1208, 1255, 1510, 1720, 2008, 2510, 3020, 5020, 6040, 6493, 10040, 10793, 12986, 21586, 25972, 32465, 37901, 43172, 51944, 53965, 64930, 75802, 86344, 107930, 129860, 151604, 189505, 215860, 259720, 303208, 379010, 431720, 758020, 1516040, 1629743, 3259486, 6518972, 8148715, 13037944, 16297430, 32594860, 65189720]

約数ペア:

[(1, 65189720), (2, 32594860), (4, 16297430), (5, 13037944), (8, 8148715), (10, 6518972), (20, 3259486), (40, 1629743), (43, 1516040), (86, 758020), (151, 431720), (172, 379010), (215, 303208), (251, 259720), (302, 215860), (344, 189505), (430, 151604), (502, 129860), (604, 107930), (755, 86344), (860, 75802), (1004, 64930), (1208, 53965), (1255, 51944), (1510, 43172), (1720, 37901), (2008, 32465), (2510, 25972), (3020, 21586), (5020, 12986), (6040, 10793), (6493, 10040)]