15558260

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{229}}^1$

素因数の和:360

約数の個数: 48

約数和(自身を含む): 34003200

約数和(自身を除く): 18444940

約数列:

[1, 2, 4, 5, 10, 20, 43, 79, 86, 158, 172, 215, 229, 316, 395, 430, 458, 790, 860, 916, 1145, 1580, 2290, 3397, 4580, 6794, 9847, 13588, 16985, 18091, 19694, 33970, 36182, 39388, 49235, 67940, 72364, 90455, 98470, 180910, 196940, 361820, 777913, 1555826, 3111652, 3889565, 7779130, 15558260]

約数ペア:

[(1, 15558260), (2, 7779130), (4, 3889565), (5, 3111652), (10, 1555826), (20, 777913), (43, 361820), (79, 196940), (86, 180910), (158, 98470), (172, 90455), (215, 72364), (229, 67940), (316, 49235), (395, 39388), (430, 36182), (458, 33970), (790, 19694), (860, 18091), (916, 16985), (1145, 13588), (1580, 9847), (2290, 6794), (3397, 4580)]