7790920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1$

素因数の和:206

約数の個数: 64

約数和(自身を含む): 18570240

約数和(自身を除く): 10779320

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 61, 62, 103, 122, 124, 155, 206, 244, 248, 305, 310, 412, 488, 515, 610, 620, 824, 1030, 1220, 1240, 1891, 2060, 2440, 3193, 3782, 4120, 6283, 6386, 7564, 9455, 12566, 12772, 15128, 15965, 18910, 25132, 25544, 31415, 31930, 37820, 50264, 62830, 63860, 75640, 125660, 127720, 194773, 251320, 389546, 779092, 973865, 1558184, 1947730, 3895460, 7790920]

約数ペア:

[(1, 7790920), (2, 3895460), (4, 1947730), (5, 1558184), (8, 973865), (10, 779092), (20, 389546), (31, 251320), (40, 194773), (61, 127720), (62, 125660), (103, 75640), (122, 63860), (124, 62830), (155, 50264), (206, 37820), (244, 31930), (248, 31415), (305, 25544), (310, 25132), (412, 18910), (488, 15965), (515, 15128), (610, 12772), (620, 12566), (824, 9455), (1030, 7564), (1220, 6386), (1240, 6283), (1891, 4120), (2060, 3782), (2440, 3193)]