278814666

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{857}}^1$

素因数の和:1015

約数の個数: 64

約数和(自身を含む): 621548928

約数和(自身を除く): 342734262

約数列:

[1, 2, 3, 6, 13, 26, 39, 43, 78, 86, 97, 129, 194, 258, 291, 559, 582, 857, 1118, 1261, 1677, 1714, 2522, 2571, 3354, 3783, 4171, 5142, 7566, 8342, 11141, 12513, 22282, 25026, 33423, 36851, 54223, 66846, 73702, 83129, 108446, 110553, 162669, 166258, 221106, 249387, 325338, 479063, 498774, 958126, 1080677, 1437189, 2161354, 2874378, 3242031, 3574547, 6484062, 7149094, 10723641, 21447282, 46469111, 92938222, 139407333, 278814666]

約数ペア:

[(1, 278814666), (2, 139407333), (3, 92938222), (6, 46469111), (13, 21447282), (26, 10723641), (39, 7149094), (43, 6484062), (78, 3574547), (86, 3242031), (97, 2874378), (129, 2161354), (194, 1437189), (258, 1080677), (291, 958126), (559, 498774), (582, 479063), (857, 325338), (1118, 249387), (1261, 221106), (1677, 166258), (1714, 162669), (2522, 110553), (2571, 108446), (3354, 83129), (3783, 73702), (4171, 66846), (5142, 54223), (7566, 36851), (8342, 33423), (11141, 25026), (12513, 22282)]