66647840

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{8501}}^1$

素因数の和:8530

約数の個数: 72

約数和(自身を含む): 183184092

約数和(自身を除く): 116536252

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 8501, 17002, 34004, 42505, 59507, 68008, 85010, 119014, 136016, 170020, 238028, 272032, 297535, 340040, 416549, 476056, 595070, 680080, 833098, 952112, 1190140, 1360160, 1666196, 1904224, 2082745, 2380280, 3332392, 4165490, 4760560, 6664784, 8330980, 9521120, 13329568, 16661960, 33323920, 66647840]

約数ペア:

[(1, 66647840), (2, 33323920), (4, 16661960), (5, 13329568), (7, 9521120), (8, 8330980), (10, 6664784), (14, 4760560), (16, 4165490), (20, 3332392), (28, 2380280), (32, 2082745), (35, 1904224), (40, 1666196), (49, 1360160), (56, 1190140), (70, 952112), (80, 833098), (98, 680080), (112, 595070), (140, 476056), (160, 416549), (196, 340040), (224, 297535), (245, 272032), (280, 238028), (392, 170020), (490, 136016), (560, 119014), (784, 85010), (980, 68008), (1120, 59507), (1568, 42505), (1960, 34004), (3920, 17002), (7840, 8501)]