217752645

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{653}}^1$

素因数の和:762

約数の個数: 64

約数和(自身を含む): 397799424

約数和(自身を除く): 180046779

約数列:

[1, 3, 5, 11, 15, 33, 43, 47, 55, 129, 141, 165, 215, 235, 473, 517, 645, 653, 705, 1419, 1551, 1959, 2021, 2365, 2585, 3265, 6063, 7095, 7183, 7755, 9795, 10105, 21549, 22231, 28079, 30315, 30691, 35915, 66693, 84237, 92073, 107745, 111155, 140395, 153455, 308869, 333465, 337601, 421185, 460365, 926607, 1012803, 1319713, 1544345, 1688005, 3959139, 4633035, 5064015, 6598565, 14516843, 19795695, 43550529, 72584215, 217752645]

約数ペア:

[(1, 217752645), (3, 72584215), (5, 43550529), (11, 19795695), (15, 14516843), (33, 6598565), (43, 5064015), (47, 4633035), (55, 3959139), (129, 1688005), (141, 1544345), (165, 1319713), (215, 1012803), (235, 926607), (473, 460365), (517, 421185), (645, 337601), (653, 333465), (705, 308869), (1419, 153455), (1551, 140395), (1959, 111155), (2021, 107745), (2365, 92073), (2585, 84237), (3265, 66693), (6063, 35915), (7095, 30691), (7183, 30315), (7755, 28079), (9795, 22231), (10105, 21549)]