81861570

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{43313}}^1$

素因数の和:43336

約数の個数: 64

約数和(自身を含む): 249488640

約数和(自身を除く): 167627070

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 210, 270, 315, 378, 630, 945, 1890, 43313, 86626, 129939, 216565, 259878, 303191, 389817, 433130, 606382, 649695, 779634, 909573, 1169451, 1299390, 1515955, 1819146, 1949085, 2338902, 2728719, 3031910, 3898170, 4547865, 5457438, 5847255, 8186157, 9095730, 11694510, 13643595, 16372314, 27287190, 40930785, 81861570]

約数ペア:

[(1, 81861570), (2, 40930785), (3, 27287190), (5, 16372314), (6, 13643595), (7, 11694510), (9, 9095730), (10, 8186157), (14, 5847255), (15, 5457438), (18, 4547865), (21, 3898170), (27, 3031910), (30, 2728719), (35, 2338902), (42, 1949085), (45, 1819146), (54, 1515955), (63, 1299390), (70, 1169451), (90, 909573), (105, 779634), (126, 649695), (135, 606382), (189, 433130), (210, 389817), (270, 303191), (315, 259878), (378, 216565), (630, 129939), (945, 86626), (1890, 43313)]