19871264

素因数分解:

$2^5\times 7^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1$

素因数の和:95

約数の個数: 144

約数和(自身を含む): 51710400

約数和(自身を除く): 31839136

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 23, 28, 29, 32, 38, 46, 49, 56, 58, 76, 92, 98, 112, 116, 133, 152, 161, 184, 196, 203, 224, 232, 266, 304, 322, 368, 392, 406, 437, 464, 532, 551, 608, 644, 667, 736, 784, 812, 874, 928, 931, 1064, 1102, 1127, 1288, 1334, 1421, 1568, 1624, 1748, 1862, 2128, 2204, 2254, 2576, 2668, 2842, 3059, 3248, 3496, 3724, 3857, 4256, 4408, 4508, 4669, 5152, 5336, 5684, 6118, 6496, 6992, 7448, 7714, 8816, 9016, 9338, 10672, 11368, 12236, 12673, 13984, 14896, 15428, 17632, 18032, 18676, 21344, 21413, 22736, 24472, 25346, 26999, 29792, 30856, 32683, 36064, 37352, 42826, 45472, 48944, 50692, 53998, 61712, 65366, 74704, 85652, 88711, 97888, 101384, 107996, 123424, 130732, 149408, 171304, 177422, 202768, 215992, 261464, 342608, 354844, 405536, 431984, 522928, 620977, 685216, 709688, 863968, 1045856, 1241954, 1419376, 2483908, 2838752, 4967816, 9935632, 19871264]

約数ペア:

[(1, 19871264), (2, 9935632), (4, 4967816), (7, 2838752), (8, 2483908), (14, 1419376), (16, 1241954), (19, 1045856), (23, 863968), (28, 709688), (29, 685216), (32, 620977), (38, 522928), (46, 431984), (49, 405536), (56, 354844), (58, 342608), (76, 261464), (92, 215992), (98, 202768), (112, 177422), (116, 171304), (133, 149408), (152, 130732), (161, 123424), (184, 107996), (196, 101384), (203, 97888), (224, 88711), (232, 85652), (266, 74704), (304, 65366), (322, 61712), (368, 53998), (392, 50692), (406, 48944), (437, 45472), (464, 42826), (532, 37352), (551, 36064), (608, 32683), (644, 30856), (667, 29792), (736, 26999), (784, 25346), (812, 24472), (874, 22736), (928, 21413), (931, 21344), (1064, 18676), (1102, 18032), (1127, 17632), (1288, 15428), (1334, 14896), (1421, 13984), (1568, 12673), (1624, 12236), (1748, 11368), (1862, 10672), (2128, 9338), (2204, 9016), (2254, 8816), (2576, 7714), (2668, 7448), (2842, 6992), (3059, 6496), (3248, 6118), (3496, 5684), (3724, 5336), (3857, 5152), (4256, 4669), (4408, 4508)]