81342885

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:262

約数の個数: 64

約数和(自身を含む): 146361600

約数和(自身を除く): 65018715

約数列:

[1, 3, 5, 13, 15, 39, 43, 65, 89, 109, 129, 195, 215, 267, 327, 445, 545, 559, 645, 1157, 1335, 1417, 1635, 1677, 2795, 3471, 3827, 4251, 4687, 5785, 7085, 8385, 9701, 11481, 14061, 17355, 19135, 21255, 23435, 29103, 48505, 49751, 57405, 60931, 70305, 126113, 145515, 149253, 182793, 248755, 304655, 378339, 417143, 630565, 746265, 913965, 1251429, 1891695, 2085715, 5422859, 6257145, 16268577, 27114295, 81342885]

約数ペア:

[(1, 81342885), (3, 27114295), (5, 16268577), (13, 6257145), (15, 5422859), (39, 2085715), (43, 1891695), (65, 1251429), (89, 913965), (109, 746265), (129, 630565), (195, 417143), (215, 378339), (267, 304655), (327, 248755), (445, 182793), (545, 149253), (559, 145515), (645, 126113), (1157, 70305), (1335, 60931), (1417, 57405), (1635, 49751), (1677, 48505), (2795, 29103), (3471, 23435), (3827, 21255), (4251, 19135), (4687, 17355), (5785, 14061), (7085, 11481), (8385, 9701)]