81927768

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{151}}^1$

素因数の和:257

約数の個数: 128

約数和(自身を含む): 232888320

約数和(自身を除く): 150960552

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 37, 39, 47, 52, 74, 78, 94, 104, 111, 141, 148, 151, 156, 188, 222, 282, 296, 302, 312, 376, 444, 453, 481, 564, 604, 611, 888, 906, 962, 1128, 1208, 1222, 1443, 1739, 1812, 1833, 1924, 1963, 2444, 2886, 3478, 3624, 3666, 3848, 3926, 4888, 5217, 5587, 5772, 5889, 6956, 7097, 7332, 7852, 10434, 11174, 11544, 11778, 13912, 14194, 14664, 15704, 16761, 20868, 21291, 22348, 22607, 23556, 28388, 33522, 41736, 42582, 44696, 45214, 47112, 56776, 67044, 67821, 72631, 85164, 90428, 92261, 134088, 135642, 145262, 170328, 180856, 184522, 217893, 262589, 271284, 276783, 290524, 369044, 435786, 525178, 542568, 553566, 581048, 738088, 787767, 871572, 1050356, 1107132, 1575534, 1743144, 2100712, 2214264, 3151068, 3413657, 6302136, 6827314, 10240971, 13654628, 20481942, 27309256, 40963884, 81927768]

約数ペア:

[(1, 81927768), (2, 40963884), (3, 27309256), (4, 20481942), (6, 13654628), (8, 10240971), (12, 6827314), (13, 6302136), (24, 3413657), (26, 3151068), (37, 2214264), (39, 2100712), (47, 1743144), (52, 1575534), (74, 1107132), (78, 1050356), (94, 871572), (104, 787767), (111, 738088), (141, 581048), (148, 553566), (151, 542568), (156, 525178), (188, 435786), (222, 369044), (282, 290524), (296, 276783), (302, 271284), (312, 262589), (376, 217893), (444, 184522), (453, 180856), (481, 170328), (564, 145262), (604, 135642), (611, 134088), (888, 92261), (906, 90428), (962, 85164), (1128, 72631), (1208, 67821), (1222, 67044), (1443, 56776), (1739, 47112), (1812, 45214), (1833, 44696), (1924, 42582), (1963, 41736), (2444, 33522), (2886, 28388), (3478, 23556), (3624, 22607), (3666, 22348), (3848, 21291), (3926, 20868), (4888, 16761), (5217, 15704), (5587, 14664), (5772, 14194), (5889, 13912), (6956, 11778), (7097, 11544), (7332, 11174), (7852, 10434)]