216406728

素因数分解:

$2^3\times 3^4\times {\mathrm{521}}^1\times {\mathrm{641}}^1$

素因数の和:1180

約数の個数: 80

約数和(自身を含む): 608250060

約数和(自身を除く): 391843332

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 521, 641, 648, 1042, 1282, 1563, 1923, 2084, 2564, 3126, 3846, 4168, 4689, 5128, 5769, 6252, 7692, 9378, 11538, 12504, 14067, 15384, 17307, 18756, 23076, 28134, 34614, 37512, 42201, 46152, 51921, 56268, 69228, 84402, 103842, 112536, 138456, 168804, 207684, 333961, 337608, 415368, 667922, 1001883, 1335844, 2003766, 2671688, 3005649, 4007532, 6011298, 8015064, 9016947, 12022596, 18033894, 24045192, 27050841, 36067788, 54101682, 72135576, 108203364, 216406728]

約数ペア:

[(1, 216406728), (2, 108203364), (3, 72135576), (4, 54101682), (6, 36067788), (8, 27050841), (9, 24045192), (12, 18033894), (18, 12022596), (24, 9016947), (27, 8015064), (36, 6011298), (54, 4007532), (72, 3005649), (81, 2671688), (108, 2003766), (162, 1335844), (216, 1001883), (324, 667922), (521, 415368), (641, 337608), (648, 333961), (1042, 207684), (1282, 168804), (1563, 138456), (1923, 112536), (2084, 103842), (2564, 84402), (3126, 69228), (3846, 56268), (4168, 51921), (4689, 46152), (5128, 42201), (5769, 37512), (6252, 34614), (7692, 28134), (9378, 23076), (11538, 18756), (12504, 17307), (14067, 15384)]