278519256

素因数分解:

$2^3\times 3^3\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{191}}^1$

素因数の和:406

約数の個数: 128

約数和(自身を含む): 800870400

約数和(自身を除く): 522351144

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 43, 54, 72, 86, 108, 129, 157, 172, 191, 216, 258, 314, 344, 382, 387, 471, 516, 573, 628, 764, 774, 942, 1032, 1146, 1161, 1256, 1413, 1528, 1548, 1719, 1884, 2292, 2322, 2826, 3096, 3438, 3768, 4239, 4584, 4644, 5157, 5652, 6751, 6876, 8213, 8478, 9288, 10314, 11304, 13502, 13752, 16426, 16956, 20253, 20628, 24639, 27004, 29987, 32852, 33912, 40506, 41256, 49278, 54008, 59974, 60759, 65704, 73917, 81012, 89961, 98556, 119948, 121518, 147834, 162024, 179922, 182277, 197112, 221751, 239896, 243036, 269883, 295668, 359844, 364554, 443502, 486072, 539766, 591336, 719688, 729108, 809649, 887004, 1079532, 1289441, 1458216, 1619298, 1774008, 2159064, 2578882, 3238596, 3868323, 5157764, 6477192, 7736646, 10315528, 11604969, 15473292, 23209938, 30946584, 34814907, 46419876, 69629814, 92839752, 139259628, 278519256]

約数ペア:

[(1, 278519256), (2, 139259628), (3, 92839752), (4, 69629814), (6, 46419876), (8, 34814907), (9, 30946584), (12, 23209938), (18, 15473292), (24, 11604969), (27, 10315528), (36, 7736646), (43, 6477192), (54, 5157764), (72, 3868323), (86, 3238596), (108, 2578882), (129, 2159064), (157, 1774008), (172, 1619298), (191, 1458216), (216, 1289441), (258, 1079532), (314, 887004), (344, 809649), (382, 729108), (387, 719688), (471, 591336), (516, 539766), (573, 486072), (628, 443502), (764, 364554), (774, 359844), (942, 295668), (1032, 269883), (1146, 243036), (1161, 239896), (1256, 221751), (1413, 197112), (1528, 182277), (1548, 179922), (1719, 162024), (1884, 147834), (2292, 121518), (2322, 119948), (2826, 98556), (3096, 89961), (3438, 81012), (3768, 73917), (4239, 65704), (4584, 60759), (4644, 59974), (5157, 54008), (5652, 49278), (6751, 41256), (6876, 40506), (8213, 33912), (8478, 32852), (9288, 29987), (10314, 27004), (11304, 24639), (13502, 20628), (13752, 20253), (16426, 16956)]