77787680

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{15683}}^1$

素因数の和:15729

約数の個数: 48

約数和(自身を含む): 189713664

約数和(自身を除く): 111925984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 992, 1240, 2480, 4960, 15683, 31366, 62732, 78415, 125464, 156830, 250928, 313660, 486173, 501856, 627320, 972346, 1254640, 1944692, 2430865, 2509280, 3889384, 4861730, 7778768, 9723460, 15557536, 19446920, 38893840, 77787680]

約数ペア:

[(1, 77787680), (2, 38893840), (4, 19446920), (5, 15557536), (8, 9723460), (10, 7778768), (16, 4861730), (20, 3889384), (31, 2509280), (32, 2430865), (40, 1944692), (62, 1254640), (80, 972346), (124, 627320), (155, 501856), (160, 486173), (248, 313660), (310, 250928), (496, 156830), (620, 125464), (992, 78415), (1240, 62732), (2480, 31366), (4960, 15683)]