128778480

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{178859}}^1$

素因数の和:178878

約数の個数: 60

約数和(自身を含む): 432483480

約数和(自身を除く): 303705000

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 178859, 357718, 536577, 715436, 894295, 1073154, 1430872, 1609731, 1788590, 2146308, 2682885, 2861744, 3219462, 3577180, 4292616, 5365770, 6438924, 7154360, 8048655, 8585232, 10731540, 12877848, 14308720, 16097310, 21463080, 25755696, 32194620, 42926160, 64389240, 128778480]

約数ペア:

[(1, 128778480), (2, 64389240), (3, 42926160), (4, 32194620), (5, 25755696), (6, 21463080), (8, 16097310), (9, 14308720), (10, 12877848), (12, 10731540), (15, 8585232), (16, 8048655), (18, 7154360), (20, 6438924), (24, 5365770), (30, 4292616), (36, 3577180), (40, 3219462), (45, 2861744), (48, 2682885), (60, 2146308), (72, 1788590), (80, 1609731), (90, 1430872), (120, 1073154), (144, 894295), (180, 715436), (240, 536577), (360, 357718), (720, 178859)]