311915780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{1051}}^1$

素因数の和:1161

約数の個数: 96

約数和(自身を含む): 763499520

約数和(自身を除く): 451583740

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 71, 76, 95, 110, 142, 190, 209, 220, 284, 355, 380, 418, 710, 781, 836, 1045, 1051, 1349, 1420, 1562, 2090, 2102, 2698, 3124, 3905, 4180, 4204, 5255, 5396, 6745, 7810, 10510, 11561, 13490, 14839, 15620, 19969, 21020, 23122, 26980, 29678, 39938, 46244, 57805, 59356, 74195, 74621, 79876, 99845, 115610, 148390, 149242, 199690, 219659, 231220, 296780, 298484, 373105, 399380, 439318, 746210, 820831, 878636, 1098295, 1417799, 1492420, 1641662, 2196590, 2835598, 3283324, 4104155, 4393180, 5671196, 7088995, 8208310, 14177990, 15595789, 16416620, 28355980, 31191578, 62383156, 77978945, 155957890, 311915780]

約数ペア:

[(1, 311915780), (2, 155957890), (4, 77978945), (5, 62383156), (10, 31191578), (11, 28355980), (19, 16416620), (20, 15595789), (22, 14177990), (38, 8208310), (44, 7088995), (55, 5671196), (71, 4393180), (76, 4104155), (95, 3283324), (110, 2835598), (142, 2196590), (190, 1641662), (209, 1492420), (220, 1417799), (284, 1098295), (355, 878636), (380, 820831), (418, 746210), (710, 439318), (781, 399380), (836, 373105), (1045, 298484), (1051, 296780), (1349, 231220), (1420, 219659), (1562, 199690), (2090, 149242), (2102, 148390), (2698, 115610), (3124, 99845), (3905, 79876), (4180, 74621), (4204, 74195), (5255, 59356), (5396, 57805), (6745, 46244), (7810, 39938), (10510, 29678), (11561, 26980), (13490, 23122), (14839, 21020), (15620, 19969)]