30879560

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{991}}^1$

素因数の和:1062

約数の個数: 64

約数和(自身を含む): 74995200

約数和(自身を除く): 44115640

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 41, 76, 82, 95, 152, 164, 190, 205, 328, 380, 410, 760, 779, 820, 991, 1558, 1640, 1982, 3116, 3895, 3964, 4955, 6232, 7790, 7928, 9910, 15580, 18829, 19820, 31160, 37658, 39640, 40631, 75316, 81262, 94145, 150632, 162524, 188290, 203155, 325048, 376580, 406310, 753160, 771989, 812620, 1543978, 1625240, 3087956, 3859945, 6175912, 7719890, 15439780, 30879560]

約数ペア:

[(1, 30879560), (2, 15439780), (4, 7719890), (5, 6175912), (8, 3859945), (10, 3087956), (19, 1625240), (20, 1543978), (38, 812620), (40, 771989), (41, 753160), (76, 406310), (82, 376580), (95, 325048), (152, 203155), (164, 188290), (190, 162524), (205, 150632), (328, 94145), (380, 81262), (410, 75316), (760, 40631), (779, 39640), (820, 37658), (991, 31160), (1558, 19820), (1640, 18829), (1982, 15580), (3116, 9910), (3895, 7928), (3964, 7790), (4955, 6232)]