278831436

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1\times {\mathrm{211}}^1$

素因数の和:471

約数の個数: 96

約数和(自身を含む): 724002048

約数和(自身を除く): 445170612

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 43, 52, 78, 86, 129, 156, 172, 197, 211, 258, 394, 422, 516, 559, 591, 633, 788, 844, 1118, 1182, 1266, 1677, 2236, 2364, 2532, 2561, 2743, 3354, 5122, 5486, 6708, 7683, 8229, 8471, 9073, 10244, 10972, 15366, 16458, 16942, 18146, 25413, 27219, 30732, 32916, 33884, 36292, 41567, 50826, 54438, 83134, 101652, 108876, 110123, 117949, 124701, 166268, 220246, 235898, 249402, 330369, 353847, 440492, 471796, 498804, 540371, 660738, 707694, 1080742, 1321476, 1415388, 1621113, 1787381, 2161484, 3242226, 3574762, 5362143, 6484452, 7149524, 10724286, 21448572, 23235953, 46471906, 69707859, 92943812, 139415718, 278831436]

約数ペア:

[(1, 278831436), (2, 139415718), (3, 92943812), (4, 69707859), (6, 46471906), (12, 23235953), (13, 21448572), (26, 10724286), (39, 7149524), (43, 6484452), (52, 5362143), (78, 3574762), (86, 3242226), (129, 2161484), (156, 1787381), (172, 1621113), (197, 1415388), (211, 1321476), (258, 1080742), (394, 707694), (422, 660738), (516, 540371), (559, 498804), (591, 471796), (633, 440492), (788, 353847), (844, 330369), (1118, 249402), (1182, 235898), (1266, 220246), (1677, 166268), (2236, 124701), (2364, 117949), (2532, 110123), (2561, 108876), (2743, 101652), (3354, 83134), (5122, 54438), (5486, 50826), (6708, 41567), (7683, 36292), (8229, 33884), (8471, 32916), (9073, 30732), (10244, 27219), (10972, 25413), (15366, 18146), (16458, 16942)]