205654320

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{285631}}^1$

素因数の和:285650

約数の個数: 60

約数和(自身を含む): 690658176

約数和(自身を除く): 485003856

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, 285631, 571262, 856893, 1142524, 1428155, 1713786, 2285048, 2570679, 2856310, 3427572, 4284465, 4570096, 5141358, 5712620, 6855144, 8568930, 10282716, 11425240, 12853395, 13710288, 17137860, 20565432, 22850480, 25706790, 34275720, 41130864, 51413580, 68551440, 102827160, 205654320]

約数ペア:

[(1, 205654320), (2, 102827160), (3, 68551440), (4, 51413580), (5, 41130864), (6, 34275720), (8, 25706790), (9, 22850480), (10, 20565432), (12, 17137860), (15, 13710288), (16, 12853395), (18, 11425240), (20, 10282716), (24, 8568930), (30, 6855144), (36, 5712620), (40, 5141358), (45, 4570096), (48, 4284465), (60, 3427572), (72, 2856310), (80, 2570679), (90, 2285048), (120, 1713786), (144, 1428155), (180, 1142524), (240, 856893), (360, 571262), (720, 285631)]