208568240

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{153359}}^1$

素因数の和:153389

約数の個数: 40

約数和(自身を含む): 513449280

約数和(自身を除く): 304881040

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 153359, 306718, 613436, 766795, 1226872, 1533590, 2453744, 2607103, 3067180, 5214206, 6134360, 10428412, 12268720, 13035515, 20856824, 26071030, 41713648, 52142060, 104284120, 208568240]

約数ペア:

[(1, 208568240), (2, 104284120), (4, 52142060), (5, 41713648), (8, 26071030), (10, 20856824), (16, 13035515), (17, 12268720), (20, 10428412), (34, 6134360), (40, 5214206), (68, 3067180), (80, 2607103), (85, 2453744), (136, 1533590), (170, 1226872), (272, 766795), (340, 613436), (680, 306718), (1360, 153359)]