19008580

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^2\times {\mathrm{43}}^1$

素因数の和:137

約数の個数: 72

約数和(自身を含む): 44041536

約数和(自身を除く): 25032956

約数列:

[1, 2, 4, 5, 10, 20, 23, 31, 43, 46, 62, 86, 92, 115, 124, 155, 172, 215, 230, 310, 430, 460, 620, 713, 860, 961, 989, 1333, 1426, 1922, 1978, 2666, 2852, 3565, 3844, 3956, 4805, 4945, 5332, 6665, 7130, 9610, 9890, 13330, 14260, 19220, 19780, 22103, 26660, 30659, 41323, 44206, 61318, 82646, 88412, 110515, 122636, 153295, 165292, 206615, 221030, 306590, 413230, 442060, 613180, 826460, 950429, 1900858, 3801716, 4752145, 9504290, 19008580]

約数ペア:

[(1, 19008580), (2, 9504290), (4, 4752145), (5, 3801716), (10, 1900858), (20, 950429), (23, 826460), (31, 613180), (43, 442060), (46, 413230), (62, 306590), (86, 221030), (92, 206615), (115, 165292), (124, 153295), (155, 122636), (172, 110515), (215, 88412), (230, 82646), (310, 61318), (430, 44206), (460, 41323), (620, 30659), (713, 26660), (860, 22103), (961, 19780), (989, 19220), (1333, 14260), (1426, 13330), (1922, 9890), (1978, 9610), (2666, 7130), (2852, 6665), (3565, 5332), (3844, 4945), (3956, 4805)]