209519360

素因数分解:

$2^8\times 5^1\times {\mathrm{191}}^1\times {\mathrm{857}}^1$

素因数の和:1069

約数の個数: 72

約数和(自身を含む): 505080576

約数和(自身を除く): 295561216

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 191, 256, 320, 382, 640, 764, 857, 955, 1280, 1528, 1714, 1910, 3056, 3428, 3820, 4285, 6112, 6856, 7640, 8570, 12224, 13712, 15280, 17140, 24448, 27424, 30560, 34280, 48896, 54848, 61120, 68560, 109696, 122240, 137120, 163687, 219392, 244480, 274240, 327374, 548480, 654748, 818435, 1096960, 1309496, 1636870, 2618992, 3273740, 5237984, 6547480, 10475968, 13094960, 20951936, 26189920, 41903872, 52379840, 104759680, 209519360]

約数ペア:

[(1, 209519360), (2, 104759680), (4, 52379840), (5, 41903872), (8, 26189920), (10, 20951936), (16, 13094960), (20, 10475968), (32, 6547480), (40, 5237984), (64, 3273740), (80, 2618992), (128, 1636870), (160, 1309496), (191, 1096960), (256, 818435), (320, 654748), (382, 548480), (640, 327374), (764, 274240), (857, 244480), (955, 219392), (1280, 163687), (1528, 137120), (1714, 122240), (1910, 109696), (3056, 68560), (3428, 61120), (3820, 54848), (4285, 48896), (6112, 34280), (6856, 30560), (7640, 27424), (8570, 24448), (12224, 17140), (13712, 15280)]