71981145

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{4091}}^1$

素因数の和:4142

約数の個数: 48

約数和(自身を含む): 137884032

約数和(自身を除く): 65902887

約数列:

[1, 3, 5, 9, 15, 17, 23, 45, 51, 69, 85, 115, 153, 207, 255, 345, 391, 765, 1035, 1173, 1955, 3519, 4091, 5865, 12273, 17595, 20455, 36819, 61365, 69547, 94093, 184095, 208641, 282279, 347735, 470465, 625923, 846837, 1043205, 1411395, 1599581, 3129615, 4234185, 4798743, 7997905, 14396229, 23993715, 71981145]

約数ペア:

[(1, 71981145), (3, 23993715), (5, 14396229), (9, 7997905), (15, 4798743), (17, 4234185), (23, 3129615), (45, 1599581), (51, 1411395), (69, 1043205), (85, 846837), (115, 625923), (153, 470465), (207, 347735), (255, 282279), (345, 208641), (391, 184095), (765, 94093), (1035, 69547), (1173, 61365), (1955, 36819), (3519, 20455), (4091, 17595), (5865, 12273)]