18614570

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{149}}^1$

素因数の和:231

約数の個数: 48

約数和(自身を含む): 37535400

約数和(自身を除く): 18920830

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 149, 155, 298, 310, 403, 745, 806, 961, 1490, 1922, 1937, 2015, 3874, 4030, 4619, 4805, 9238, 9610, 9685, 12493, 19370, 23095, 24986, 46190, 60047, 62465, 120094, 124930, 143189, 286378, 300235, 600470, 715945, 1431890, 1861457, 3722914, 9307285, 18614570]

約数ペア:

[(1, 18614570), (2, 9307285), (5, 3722914), (10, 1861457), (13, 1431890), (26, 715945), (31, 600470), (62, 300235), (65, 286378), (130, 143189), (149, 124930), (155, 120094), (298, 62465), (310, 60047), (403, 46190), (745, 24986), (806, 23095), (961, 19370), (1490, 12493), (1922, 9685), (1937, 9610), (2015, 9238), (3874, 4805), (4030, 4619)]