1981036785

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{18371}}^1$

素因数の和:18478

約数の個数: 64

約数和(自身を含む): 3950714880

約数和(自身を除く): 1969678095

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 79, 91, 105, 195, 237, 273, 395, 455, 553, 1027, 1185, 1365, 1659, 2765, 3081, 5135, 7189, 8295, 15405, 18371, 21567, 35945, 55113, 91855, 107835, 128597, 238823, 275565, 385791, 642985, 716469, 1194115, 1451309, 1671761, 1928955, 3582345, 4353927, 5015283, 7256545, 8358805, 10159163, 18867017, 21769635, 25076415, 30477489, 50795815, 56601051, 94335085, 132069119, 152387445, 283005255, 396207357, 660345595, 1981036785]

約数ペア:

[(1, 1981036785), (3, 660345595), (5, 396207357), (7, 283005255), (13, 152387445), (15, 132069119), (21, 94335085), (35, 56601051), (39, 50795815), (65, 30477489), (79, 25076415), (91, 21769635), (105, 18867017), (195, 10159163), (237, 8358805), (273, 7256545), (395, 5015283), (455, 4353927), (553, 3582345), (1027, 1928955), (1185, 1671761), (1365, 1451309), (1659, 1194115), (2765, 716469), (3081, 642985), (5135, 385791), (7189, 275565), (8295, 238823), (15405, 128597), (18371, 107835), (21567, 91855), (35945, 55113)]