220020784

素因数分解:

$2^4\times {\mathrm{257}}^1\times {\mathrm{53507}}^1$

素因数の和:53772

約数の個数: 20

約数和(自身を含む): 427956984

約数和(自身を除く): 207936200

約数列:

[1, 2, 4, 8, 16, 257, 514, 1028, 2056, 4112, 53507, 107014, 214028, 428056, 856112, 13751299, 27502598, 55005196, 110010392, 220020784]

約数ペア:

[(1, 220020784), (2, 110010392), (4, 55005196), (8, 27502598), (16, 13751299), (257, 856112), (514, 428056), (1028, 214028), (2056, 107014), (4112, 53507)]