643812416

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{293}}^1$

素因数の和:476

約数の個数: 112

約数和(自身を含む): 1463649600

約数和(自身を除く): 819837184

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 32, 38, 52, 64, 76, 104, 139, 152, 208, 247, 278, 293, 304, 416, 494, 556, 586, 608, 832, 988, 1112, 1172, 1216, 1807, 1976, 2224, 2344, 2641, 3614, 3809, 3952, 4448, 4688, 5282, 5567, 7228, 7618, 7904, 8896, 9376, 10564, 11134, 14456, 15236, 15808, 18752, 21128, 22268, 28912, 30472, 34333, 40727, 42256, 44536, 57824, 60944, 68666, 72371, 81454, 84512, 89072, 115648, 121888, 137332, 144742, 162908, 169024, 178144, 243776, 274664, 289484, 325816, 356288, 529451, 549328, 578968, 651632, 773813, 1058902, 1098656, 1157936, 1303264, 1547626, 2117804, 2197312, 2315872, 2606528, 3095252, 4235608, 4631744, 6190504, 8471216, 10059569, 12381008, 16942432, 20119138, 24762016, 33884864, 40238276, 49524032, 80476552, 160953104, 321906208, 643812416]

約数ペア:

[(1, 643812416), (2, 321906208), (4, 160953104), (8, 80476552), (13, 49524032), (16, 40238276), (19, 33884864), (26, 24762016), (32, 20119138), (38, 16942432), (52, 12381008), (64, 10059569), (76, 8471216), (104, 6190504), (139, 4631744), (152, 4235608), (208, 3095252), (247, 2606528), (278, 2315872), (293, 2197312), (304, 2117804), (416, 1547626), (494, 1303264), (556, 1157936), (586, 1098656), (608, 1058902), (832, 773813), (988, 651632), (1112, 578968), (1172, 549328), (1216, 529451), (1807, 356288), (1976, 325816), (2224, 289484), (2344, 274664), (2641, 243776), (3614, 178144), (3809, 169024), (3952, 162908), (4448, 144742), (4688, 137332), (5282, 121888), (5567, 115648), (7228, 89072), (7618, 84512), (7904, 81454), (8896, 72371), (9376, 68666), (10564, 60944), (11134, 57824), (14456, 44536), (15236, 42256), (15808, 40727), (18752, 34333), (21128, 30472), (22268, 28912)]