90389860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{2999}}^1$

素因数の和:3156

約数の個数: 48

約数和(自身を含む): 208656000

約数和(自身を除く): 118266140

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 137, 220, 274, 548, 685, 1370, 1507, 2740, 2999, 3014, 5998, 6028, 7535, 11996, 14995, 15070, 29990, 30140, 32989, 59980, 65978, 131956, 164945, 329890, 410863, 659780, 821726, 1643452, 2054315, 4108630, 4519493, 8217260, 9038986, 18077972, 22597465, 45194930, 90389860]

約数ペア:

[(1, 90389860), (2, 45194930), (4, 22597465), (5, 18077972), (10, 9038986), (11, 8217260), (20, 4519493), (22, 4108630), (44, 2054315), (55, 1643452), (110, 821726), (137, 659780), (220, 410863), (274, 329890), (548, 164945), (685, 131956), (1370, 65978), (1507, 59980), (2740, 32989), (2999, 30140), (3014, 29990), (5998, 15070), (6028, 14995), (7535, 11996)]