81653572

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{20393}}^1$

素因数の和:20428

約数の個数: 48

約数和(自身を含む): 191866752

約数和(自身を除く): 110213180

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 52, 77, 91, 143, 154, 182, 286, 308, 364, 572, 1001, 2002, 4004, 20393, 40786, 81572, 142751, 224323, 265109, 285502, 448646, 530218, 571004, 897292, 1060436, 1570261, 1855763, 2916199, 3140522, 3711526, 5832398, 6281044, 7423052, 11664796, 20413393, 40826786, 81653572]

約数ペア:

[(1, 81653572), (2, 40826786), (4, 20413393), (7, 11664796), (11, 7423052), (13, 6281044), (14, 5832398), (22, 3711526), (26, 3140522), (28, 2916199), (44, 1855763), (52, 1570261), (77, 1060436), (91, 897292), (143, 571004), (154, 530218), (182, 448646), (286, 285502), (308, 265109), (364, 224323), (572, 142751), (1001, 81572), (2002, 40786), (4004, 20393)]