218539984

素因数分解:

$2^4\times {\mathrm{13}}^3\times {\mathrm{6217}}^1$

素因数の和:6264

約数の個数: 40

約数和(自身を含む): 458764040

約数和(自身を除く): 240224056

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 169, 208, 338, 676, 1352, 2197, 2704, 4394, 6217, 8788, 12434, 17576, 24868, 35152, 49736, 80821, 99472, 161642, 323284, 646568, 1050673, 1293136, 2101346, 4202692, 8405384, 13658749, 16810768, 27317498, 54634996, 109269992, 218539984]

約数ペア:

[(1, 218539984), (2, 109269992), (4, 54634996), (8, 27317498), (13, 16810768), (16, 13658749), (26, 8405384), (52, 4202692), (104, 2101346), (169, 1293136), (208, 1050673), (338, 646568), (676, 323284), (1352, 161642), (2197, 99472), (2704, 80821), (4394, 49736), (6217, 35152), (8788, 24868), (12434, 17576)]