215688836

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{37}}^1\times {\mathrm{367}}^1$

素因数の和:457

約数の個数: 72

約数和(自身を含む): 447543936

約数和(自身を除く): 231855100

約数列:

[1, 2, 4, 11, 19, 22, 37, 38, 44, 74, 76, 148, 209, 361, 367, 407, 418, 703, 722, 734, 814, 836, 1406, 1444, 1468, 1628, 2812, 3971, 4037, 6973, 7733, 7942, 8074, 13357, 13579, 13946, 15466, 15884, 16148, 26714, 27158, 27892, 30932, 53428, 54316, 76703, 132487, 146927, 149369, 153406, 258001, 264974, 293854, 298738, 306812, 516002, 529948, 587708, 597476, 1032004, 1457357, 2838011, 2914714, 4902019, 5676022, 5829428, 9804038, 11352044, 19608076, 53922209, 107844418, 215688836]

約数ペア:

[(1, 215688836), (2, 107844418), (4, 53922209), (11, 19608076), (19, 11352044), (22, 9804038), (37, 5829428), (38, 5676022), (44, 4902019), (74, 2914714), (76, 2838011), (148, 1457357), (209, 1032004), (361, 597476), (367, 587708), (407, 529948), (418, 516002), (703, 306812), (722, 298738), (734, 293854), (814, 264974), (836, 258001), (1406, 153406), (1444, 149369), (1468, 146927), (1628, 132487), (2812, 76703), (3971, 54316), (4037, 53428), (6973, 30932), (7733, 27892), (7942, 27158), (8074, 26714), (13357, 16148), (13579, 15884), (13946, 15466)]