217178512

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{349}}^1$

素因数の和:488

約数の個数: 80

約数和(自身を含む): 468720000

約数和(自身を除く): 251541488

約数列:

[1, 2, 4, 8, 16, 19, 23, 38, 46, 76, 89, 92, 152, 178, 184, 304, 349, 356, 368, 437, 698, 712, 874, 1396, 1424, 1691, 1748, 2047, 2792, 3382, 3496, 4094, 5584, 6631, 6764, 6992, 8027, 8188, 13262, 13528, 16054, 16376, 26524, 27056, 31061, 32108, 32752, 38893, 53048, 62122, 64216, 77786, 106096, 124244, 128432, 152513, 155572, 248488, 305026, 311144, 496976, 590159, 610052, 622288, 714403, 1180318, 1220104, 1428806, 2360636, 2440208, 2857612, 4721272, 5715224, 9442544, 11430448, 13573657, 27147314, 54294628, 108589256, 217178512]

約数ペア:

[(1, 217178512), (2, 108589256), (4, 54294628), (8, 27147314), (16, 13573657), (19, 11430448), (23, 9442544), (38, 5715224), (46, 4721272), (76, 2857612), (89, 2440208), (92, 2360636), (152, 1428806), (178, 1220104), (184, 1180318), (304, 714403), (349, 622288), (356, 610052), (368, 590159), (437, 496976), (698, 311144), (712, 305026), (874, 248488), (1396, 155572), (1424, 152513), (1691, 128432), (1748, 124244), (2047, 106096), (2792, 77786), (3382, 64216), (3496, 62122), (4094, 53048), (5584, 38893), (6631, 32752), (6764, 32108), (6992, 31061), (8027, 27056), (8188, 26524), (13262, 16376), (13528, 16054)]