420973176

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{571}}^1$

素因数の和:749

約数の個数: 128

約数和(自身を含む): 1210809600

約数和(自身を除く): 789836424

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 17, 24, 26, 34, 39, 51, 52, 68, 78, 102, 104, 136, 139, 156, 204, 221, 278, 312, 408, 417, 442, 556, 571, 663, 834, 884, 1112, 1142, 1326, 1668, 1713, 1768, 1807, 2284, 2363, 2652, 3336, 3426, 3614, 4568, 4726, 5304, 5421, 6852, 7089, 7228, 7423, 9452, 9707, 10842, 13704, 14178, 14456, 14846, 18904, 19414, 21684, 22269, 28356, 29121, 29692, 30719, 38828, 43368, 44538, 56712, 58242, 59384, 61438, 77656, 79369, 89076, 92157, 116484, 122876, 126191, 158738, 178152, 184314, 232968, 238107, 245752, 252382, 317476, 368628, 378573, 476214, 504764, 634952, 737256, 757146, 952428, 1009528, 1031797, 1349273, 1514292, 1904856, 2063594, 2698546, 3028584, 3095391, 4047819, 4127188, 5397092, 6190782, 8095638, 8254376, 10794184, 12381564, 16191276, 17540549, 24763128, 32382552, 35081098, 52621647, 70162196, 105243294, 140324392, 210486588, 420973176]

約数ペア:

[(1, 420973176), (2, 210486588), (3, 140324392), (4, 105243294), (6, 70162196), (8, 52621647), (12, 35081098), (13, 32382552), (17, 24763128), (24, 17540549), (26, 16191276), (34, 12381564), (39, 10794184), (51, 8254376), (52, 8095638), (68, 6190782), (78, 5397092), (102, 4127188), (104, 4047819), (136, 3095391), (139, 3028584), (156, 2698546), (204, 2063594), (221, 1904856), (278, 1514292), (312, 1349273), (408, 1031797), (417, 1009528), (442, 952428), (556, 757146), (571, 737256), (663, 634952), (834, 504764), (884, 476214), (1112, 378573), (1142, 368628), (1326, 317476), (1668, 252382), (1713, 245752), (1768, 238107), (1807, 232968), (2284, 184314), (2363, 178152), (2652, 158738), (3336, 126191), (3426, 122876), (3614, 116484), (4568, 92157), (4726, 89076), (5304, 79369), (5421, 77656), (6852, 61438), (7089, 59384), (7228, 58242), (7423, 56712), (9452, 44538), (9707, 43368), (10842, 38828), (13704, 30719), (14178, 29692), (14456, 29121), (14846, 28356), (18904, 22269), (19414, 21684)]