20278315648

素因数分解:

$2^7\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{44389}}^1$

素因数の和:44529

約数の個数: 64

約数和(自身を含む): 41836687200

約数和(自身を除く): 21558371552

約数列:

[1, 2, 4, 8, 16, 32, 43, 64, 83, 86, 128, 166, 172, 332, 344, 664, 688, 1328, 1376, 2656, 2752, 3569, 5312, 5504, 7138, 10624, 14276, 28552, 44389, 57104, 88778, 114208, 177556, 228416, 355112, 456832, 710224, 1420448, 1908727, 2840896, 3684287, 3817454, 5681792, 7368574, 7634908, 14737148, 15269816, 29474296, 30539632, 58948592, 61079264, 117897184, 122158528, 158424341, 235794368, 244317056, 316848682, 471588736, 633697364, 1267394728, 2534789456, 5069578912, 10139157824, 20278315648]

約数ペア:

[(1, 20278315648), (2, 10139157824), (4, 5069578912), (8, 2534789456), (16, 1267394728), (32, 633697364), (43, 471588736), (64, 316848682), (83, 244317056), (86, 235794368), (128, 158424341), (166, 122158528), (172, 117897184), (332, 61079264), (344, 58948592), (664, 30539632), (688, 29474296), (1328, 15269816), (1376, 14737148), (2656, 7634908), (2752, 7368574), (3569, 5681792), (5312, 3817454), (5504, 3684287), (7138, 2840896), (10624, 1908727), (14276, 1420448), (28552, 710224), (44389, 456832), (57104, 355112), (88778, 228416), (114208, 177556)]