31316820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{149}}^1$

素因数の和:305

約数の個数: 96

約数和(自身を含む): 91929600

約数和(自身を除く): 60612780

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 93, 113, 124, 149, 155, 186, 226, 298, 310, 339, 372, 447, 452, 465, 565, 596, 620, 678, 745, 894, 930, 1130, 1356, 1490, 1695, 1788, 1860, 2235, 2260, 2980, 3390, 3503, 4470, 4619, 6780, 7006, 8940, 9238, 10509, 13857, 14012, 16837, 17515, 18476, 21018, 23095, 27714, 33674, 35030, 42036, 46190, 50511, 52545, 55428, 67348, 69285, 70060, 84185, 92380, 101022, 105090, 138570, 168370, 202044, 210180, 252555, 277140, 336740, 505110, 521947, 1010220, 1043894, 1565841, 2087788, 2609735, 3131682, 5219470, 6263364, 7829205, 10438940, 15658410, 31316820]

約数ペア:

[(1, 31316820), (2, 15658410), (3, 10438940), (4, 7829205), (5, 6263364), (6, 5219470), (10, 3131682), (12, 2609735), (15, 2087788), (20, 1565841), (30, 1043894), (31, 1010220), (60, 521947), (62, 505110), (93, 336740), (113, 277140), (124, 252555), (149, 210180), (155, 202044), (186, 168370), (226, 138570), (298, 105090), (310, 101022), (339, 92380), (372, 84185), (447, 70060), (452, 69285), (465, 67348), (565, 55428), (596, 52545), (620, 50511), (678, 46190), (745, 42036), (894, 35030), (930, 33674), (1130, 27714), (1356, 23095), (1490, 21018), (1695, 18476), (1788, 17515), (1860, 16837), (2235, 14012), (2260, 13857), (2980, 10509), (3390, 9238), (3503, 8940), (4470, 7006), (4619, 6780)]