281027440

素因数分解:

$2^4\times 5^1\times {\mathrm{857}}^1\times {\mathrm{4099}}^1$

素因数の和:4969

約数の個数: 40

約数和(自身を含む): 654310800

約数和(自身を除く): 373283360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 857, 1714, 3428, 4099, 4285, 6856, 8198, 8570, 13712, 16396, 17140, 20495, 32792, 34280, 40990, 65584, 68560, 81980, 163960, 327920, 3512843, 7025686, 14051372, 17564215, 28102744, 35128430, 56205488, 70256860, 140513720, 281027440]

約数ペア:

[(1, 281027440), (2, 140513720), (4, 70256860), (5, 56205488), (8, 35128430), (10, 28102744), (16, 17564215), (20, 14051372), (40, 7025686), (80, 3512843), (857, 327920), (1714, 163960), (3428, 81980), (4099, 68560), (4285, 65584), (6856, 40990), (8198, 34280), (8570, 32792), (13712, 20495), (16396, 17140)]