77401420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{983}}^1$

素因数の和:1150

約数の個数: 48

約数和(自身を含む): 169279488

約数和(自身を除く): 91878068

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 127, 155, 254, 310, 508, 620, 635, 983, 1270, 1966, 2540, 3932, 3937, 4915, 7874, 9830, 15748, 19660, 19685, 30473, 39370, 60946, 78740, 121892, 124841, 152365, 249682, 304730, 499364, 609460, 624205, 1248410, 2496820, 3870071, 7740142, 15480284, 19350355, 38700710, 77401420]

約数ペア:

[(1, 77401420), (2, 38700710), (4, 19350355), (5, 15480284), (10, 7740142), (20, 3870071), (31, 2496820), (62, 1248410), (124, 624205), (127, 609460), (155, 499364), (254, 304730), (310, 249682), (508, 152365), (620, 124841), (635, 121892), (983, 78740), (1270, 60946), (1966, 39370), (2540, 30473), (3932, 19685), (3937, 19660), (4915, 15748), (7874, 9830)]