71021219860

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{8423}}^1\times {\mathrm{22189}}^1$

素因数の和:30640

約数の個数: 48

約数和(自身を含む): 157019990400

約数和(自身を除く): 85998770540

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 8423, 16846, 22189, 33692, 42115, 44378, 84230, 88756, 110945, 160037, 168460, 221890, 320074, 421591, 443780, 640148, 800185, 843182, 1600370, 1686364, 2107955, 3200740, 4215910, 8431820, 186897947, 373795894, 747591788, 934489735, 1868979470, 3551060993, 3737958940, 7102121986, 14204243972, 17755304965, 35510609930, 71021219860]

約数ペア:

[(1, 71021219860), (2, 35510609930), (4, 17755304965), (5, 14204243972), (10, 7102121986), (19, 3737958940), (20, 3551060993), (38, 1868979470), (76, 934489735), (95, 747591788), (190, 373795894), (380, 186897947), (8423, 8431820), (16846, 4215910), (22189, 3200740), (33692, 2107955), (42115, 1686364), (44378, 1600370), (84230, 843182), (88756, 800185), (110945, 640148), (160037, 443780), (168460, 421591), (221890, 320074)]