51256880

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{313}}^1$

素因数の和:438

約数の個数: 80

約数和(自身を含む): 126152640

約数和(自身を除く): 74895760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 89, 92, 115, 178, 184, 230, 313, 356, 368, 445, 460, 626, 712, 890, 920, 1252, 1424, 1565, 1780, 1840, 2047, 2504, 3130, 3560, 4094, 5008, 6260, 7120, 7199, 8188, 10235, 12520, 14398, 16376, 20470, 25040, 27857, 28796, 32752, 35995, 40940, 55714, 57592, 71990, 81880, 111428, 115184, 139285, 143980, 163760, 222856, 278570, 287960, 445712, 557140, 575920, 640711, 1114280, 1281422, 2228560, 2562844, 3203555, 5125688, 6407110, 10251376, 12814220, 25628440, 51256880]

約数ペア:

[(1, 51256880), (2, 25628440), (4, 12814220), (5, 10251376), (8, 6407110), (10, 5125688), (16, 3203555), (20, 2562844), (23, 2228560), (40, 1281422), (46, 1114280), (80, 640711), (89, 575920), (92, 557140), (115, 445712), (178, 287960), (184, 278570), (230, 222856), (313, 163760), (356, 143980), (368, 139285), (445, 115184), (460, 111428), (626, 81880), (712, 71990), (890, 57592), (920, 55714), (1252, 40940), (1424, 35995), (1565, 32752), (1780, 28796), (1840, 27857), (2047, 25040), (2504, 20470), (3130, 16376), (3560, 14398), (4094, 12520), (5008, 10235), (6260, 8188), (7120, 7199)]