212014720

素因数分解:

$2^7\times 5^1\times {\mathrm{257}}^1\times {\mathrm{1289}}^1$

素因数の和:1565

約数の個数: 64

約数和(自身を含む): 509214600

約数和(自身を除く): 297199880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 257, 320, 514, 640, 1028, 1285, 1289, 2056, 2570, 2578, 4112, 5140, 5156, 6445, 8224, 10280, 10312, 12890, 16448, 20560, 20624, 25780, 32896, 41120, 41248, 51560, 82240, 82496, 103120, 164480, 164992, 206240, 331273, 412480, 662546, 824960, 1325092, 1656365, 2650184, 3312730, 5300368, 6625460, 10600736, 13250920, 21201472, 26501840, 42402944, 53003680, 106007360, 212014720]

約数ペア:

[(1, 212014720), (2, 106007360), (4, 53003680), (5, 42402944), (8, 26501840), (10, 21201472), (16, 13250920), (20, 10600736), (32, 6625460), (40, 5300368), (64, 3312730), (80, 2650184), (128, 1656365), (160, 1325092), (257, 824960), (320, 662546), (514, 412480), (640, 331273), (1028, 206240), (1285, 164992), (1289, 164480), (2056, 103120), (2570, 82496), (2578, 82240), (4112, 51560), (5140, 41248), (5156, 41120), (6445, 32896), (8224, 25780), (10280, 20624), (10312, 20560), (12890, 16448)]